APA (7 ম সংস্করণ) উদ্ধৃতি

(1980). Dod Should Determine Cost And Operational Effectiveness Of Helicopter In-flight Escape Systems.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Dod Should Determine Cost And Operational Effectiveness Of Helicopter In-flight Escape Systems. 1980.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Dod Should Determine Cost And Operational Effectiveness Of Helicopter In-flight Escape Systems. 1980.