Lua APA (7ú heag.)

SWEETMAN BILL. (2019). COMBAT RESCUE HELICOPTERS THE MH 53 PAVE LOWS (2008 Ed.). CAPSTONE PRESS.

Lua i Stíl Chicago (17ú heag.)

SWEETMAN BILL. COMBAT RESCUE HELICOPTERS THE MH 53 PAVE LOWS. 2008 Ed. MINNESOTA: CAPSTONE PRESS, 2019.

Lua MLA (9ú heag.)

SWEETMAN BILL. COMBAT RESCUE HELICOPTERS THE MH 53 PAVE LOWS. 2008 Ed. CAPSTONE PRESS, 2019.

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