Cita APA (7a ed.)

Crawford, D. R. (1981). A practical guide to airplane performance and design. Crawford Aviation.

Cita Chicago Style (17a ed.)

Crawford, Donal R. A Practical Guide to Airplane Performance and Design. California: Crawford Aviation, 1981.

Cita MLA (8a ed.)

Crawford, Donal R. A Practical Guide to Airplane Performance and Design. Crawford Aviation, 1981.