Gaya APA
Hayes, M, D. (2017).
Private Pilot Oral Exam Guide (E-Book) (Eleventh Edition).
:
Aviation Supplies & Academics, Inc..
Gaya MLA
Hayes, Michael, D.
"Private Pilot Oral Exam Guide (E-Book)".
Eleventh Edition
:
Aviation Supplies & Academics, Inc.,
2017.
Text.