Gaya APA

Inc., A, S, &, A. (2019). Powerplant Test Guide 2018 (E-Book) (2018). : Aviation Supplies & Academics, Inc..

Gaya MLA

Inc., Aviation, Supplies, &, Academics,. "Powerplant Test Guide 2018 (E-Book)". 2018 : Aviation Supplies & Academics, Inc., 2019. Text.