Gaya APA

Fietz, K. (2018). Aviation Maintenance Technician : maintenance practice module for b1 & b2 certification (Certification Series). USA: Aircraft Technical Book Compan.

Gaya MLA

Fietz, Ken. "Aviation Maintenance Technician : maintenance practice module for b1 & b2 certification". Certification Series USA: Aircraft Technical Book Compan, 2018. Teks.