Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

Crawford, Donald R. A Practical Guide to Airplane Performance and Design. Torrance: Crawford Aviation, 1981.

Cita MLA (9th ed.)

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