Gaya APA

INC, M, G, , H. (1976). Mc GRAW - HILL ENCYCLOPEDIA OF SCIENCE AND TECHNOLOGY 1- 20 INDEX . : Mc GRAWHILL INC.

Gaya MLA

INC, Mc., GRAW, , HILL. "Mc GRAW - HILL ENCYCLOPEDIA OF SCIENCE AND TECHNOLOGY 1- 20 INDEX". : Mc GRAWHILL INC, 1976. Text.