Gaya APA

KERROD, R. (1998). MACMILLAN REVISED ENCYCLOPEDIA OF SCIENCE TOOLS AND TOMORROW 12 . NEW YORK: MACMILLAN REFERENCE.

Gaya MLA

KERROD, ROBIN. "MACMILLAN REVISED ENCYCLOPEDIA OF SCIENCE TOOLS AND TOMORROW 12". NEW YORK: MACMILLAN REFERENCE, 1998. Text.