Phelps, Leroy G.; Elwyn, Robert; Rodakiewicz, Henwar; Knox, Gordon & Nagel, Conrad. Grumman at War. Princeton, New Jersey. UNT Digital Library. http://digital.library.unt.edu/ark:/67531/metadc13638/. Accessed May 6, 2015.
Note: Inconsistencies in capitalization and punctuation within the Digital Library may affect this citation. Before using this citation in formal writing, please consult your preferred style manual. More information.