Gaya APA
Frederick, John H.. (1955).
Commercial air transportation John H. Frederick (4th ed).
Homewood:
Richard D. Irwin.
Gaya Chicago
Frederick, John H..
Commercial air transportation John H. Frederick.
4th ed
Homewood:
Richard D. Irwin,
1955.
Text.
Gaya MLA
Frederick, John H..
Commercial air transportation John H. Frederick.
4th ed
Homewood:
Richard D. Irwin,
1955.
Text.
Gaya Turabian
Frederick, John H..
Commercial air transportation John H. Frederick.
4th ed
Homewood:
Richard D. Irwin,
1955.
Print.