Wimpress, J. K., & Newberry, C. F. (1998). The YC-14 STOL prototype: Its design, development, and flight test : an engineer's personal view of an airplane development. American Institute of Aeronautics and Astronautics.
Čikaški stil citiranja (17. izdanje)Wimpress, John K., i Conrad F. Newberry. The YC-14 STOL Prototype: Its Design, Development, and Flight Test : An Engineer's Personal View of an Airplane Development. Reston, Va.: American Institute of Aeronautics and Astronautics, 1998.
MLA način citiranja (9. izdanje)Wimpress, John K., i Conrad F. Newberry. The YC-14 STOL Prototype: Its Design, Development, and Flight Test : An Engineer's Personal View of an Airplane Development. American Institute of Aeronautics and Astronautics, 1998.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.