Charles David Walker (Slovak Wikipedia)

Analysis of information sources in references of the Wikipedia article "Charles David Walker" in Slovak language version.

refsWebsite

Global rank Slovak rank

75^th place

60^th place

1,290^th place

267^th place

boeing.com

Engineer In Space (1984) [online]. . Dostupné online.

nasa.gov

jsc.nasa.gov

Biographical Data Sheet – Charles D. "Charlie" Walker [online]. NASA Johnson Space Center Oral History Project, 2004-09-00, [cit. 2010-12-09]. Dostupné online. (anglicky)