APA-ийн эшлэл(7 дахь хэвлэлт)

Birkler, J. L. (2003). Competition and innovation: In the U.S. fixed-wing military aircraft industry. RAND.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Birkler, J. L. Competition and Innovation: In the U.S. Fixed-wing Military Aircraft Industry. Santa Monica, Calif.: RAND, 2003.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Birkler, J. L. Competition and Innovation: In the U.S. Fixed-wing Military Aircraft Industry. RAND, 2003.