Green e Swanborough 1985, pp. 35-53, 80. (EN) William Green e Gordon Swanborough, The Era of the Gulls: The Chronicles of the Pulawski Fighter Line, in Air Enthusiast, Nr. 28, luglio-October 1985, ISSN 0143-5450 (WC · ACNP).
worldcat.org
Green e Swanborough 1985, pp. 35-53, 80. (EN) William Green e Gordon Swanborough, The Era of the Gulls: The Chronicles of the Pulawski Fighter Line, in Air Enthusiast, Nr. 28, luglio-October 1985, ISSN 0143-5450 (WC · ACNP).