Gaya APA

LAFFERTY, P. (1998). MACMILLAN ENCYCLOPEDIA OF SCIENCE : MATTER AND ENERGY JILID 1 . : macmillan reference USA.

Gaya MLA

LAFFERTY, PETER. "MACMILLAN ENCYCLOPEDIA OF SCIENCE : MATTER AND ENERGY JILID 1". : macmillan reference USA, 1998. Text.