Gaya APA
Kershner, W, K. et al (1983).
The Student pilot's Study Guide (First Edition).
Ames:
The Lowa State Univerity Press.
Gaya MLA
Kershner, William, K.. et al.
"The Student pilot's Study Guide".
First Edition
Ames:
The Lowa State Univerity Press,
1983.
Text.