Gaya APA

Strauss, K, H., Gonzaales, , C. (1989). Future fuels for general aviation (1989). : Phuladelphia : ASTM,.

Gaya MLA

Strauss, Kurt, H., Gonzaales, , Cesar. "Future fuels for general aviation". 1989 : Phuladelphia : ASTM,, 1989. Text.