APA Style

Cowley, Charles R., Ashford, Norman. (). Airport engineering . : .

Chicago Style

Cowley, Charles R., Ashford, Norman. Airport engineering. : , . .

MLA Style

Cowley, Charles R., Ashford, Norman. Airport engineering. : , . .

Turabian Style

Cowley, Charles R., Ashford, Norman. Airport engineering. : , . .