Gaya APA

9380. (1). : McGraw-Hill.

Gaya Chicago

9380. SCIENCE (The Sky). : McGraw-Hill, 1. 11/O/IPA/030.

Gaya MLA

9380. SCIENCE (The Sky). : McGraw-Hill, 1. 11/O/IPA/030.

Gaya Turabian

9380. : McGraw-Hill, 1. 11/O/IPA/030.