Gaya APA

Macmillan, . (1997). Macmillan Revised Encyclopedia f Science ; The Heavens, Stars, Galaxies and The Solar System . New York: Macmillan Reference USA.

Gaya MLA

Macmillan, . "Macmillan Revised Encyclopedia f Science ; The Heavens, Stars, Galaxies and The Solar System". New York: Macmillan Reference USA, 1997. Text.