Double-A (baseball) (English Wikipedia)

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"Dickey-Stephens Park". Arkansas Diamonds: The Ballparks of Arkansas and Their History. Archived from the original on May 5, 2015. Retrieved September 22, 2017.

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Hunter, Ian (May 11, 2018). "Flashback Friday: Blue Jays Position Players Who Leapt From Double-A to MLB". bluejayhunter.com. Retrieved April 14, 2021.

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Bergeron, Angela (2008). "Feature Story - August 2008". Engineering News-Record. McGraw-Hill. Archived from the original on February 27, 2014. Retrieved September 22, 2017.

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Jackson, Josh (January 15, 2015). "Triple-A, Double-A to Implement Pitch Clock". MILB.com. Retrieved April 20, 2015.
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"National Commission Grants Minor Leaguers Everything Asked For: Big Moguls of Baseball...Establish Much Wanted Class AA". The Philadelphia Inquirer. January 5, 1912. p. 10. Retrieved April 14, 2021 – via newspapers.com.
"SL Sets First All-Star Tilt". The Orlando Sentinel. Orlando. July 11, 1991. p. B-4 – via Newspapers.com.
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"2012 Altoona Curve Media Guide". Minor League Baseball. 2012. Retrieved May 4, 2015.

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"What is Double AA Baseball?". SportingCharts. 2014. Retrieved March 19, 2015.

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O'Connor, John (March 27, 2010). "Bleacher Banners Give Diamond New Look, Fewer Seats". Richmond Times-Dispatch. Retrieved February 23, 2014.

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"Dickey-Stephens Park". Arkansas Diamonds: The Ballparks of Arkansas and Their History. Archived from the original on May 5, 2015. Retrieved September 22, 2017.
Bergeron, Angela (2008). "Feature Story - August 2008". Engineering News-Record. McGraw-Hill. Archived from the original on February 27, 2014. Retrieved September 22, 2017.
"Security Bank Ballpark". Stadiums USA. Archived from the original on May 8, 2016. Retrieved September 22, 2017.
"Jerry Uht Park". Erie County Convention Center Authority. Archived from the original on July 30, 2012. Retrieved August 3, 2012.