APA-ийн эшлэл(7 дахь хэвлэлт)

Connors, J., & Allen, N. (2010). The engines of Pratt & Whitney: A technical history. American Institute of Aeronautics and Astronautics.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Connors, Jack, ба Ned Allen. The Engines of Pratt & Whitney: A Technical History. Reston, Va.: American Institute of Aeronautics and Astronautics, 2010.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Connors, Jack, ба Ned Allen. The Engines of Pratt & Whitney: A Technical History. American Institute of Aeronautics and Astronautics, 2010.