Gaya APA

SINCLAIR, D, C., BELL, W, E. (1969). GAS LASER TECHNOLOGY . : HOLT, RINEHART AND WINSTON, NewYork.

Gaya MLA

SINCLAIR, DOUGLAS, C.., BELL, W., EARL. "GAS LASER TECHNOLOGY". : HOLT, RINEHART AND WINSTON, NewYork, 1969. Textbook.