Claybourne, A. (2007). Ensiklopedia planet bumi. Erlangga.
Chicago Style (17th ed.) CitationClaybourne, Anna. Ensiklopedia Planet Bumi. Erlangga, 2007.
MLA (8th ed.) CitationClaybourne, Anna. Ensiklopedia Planet Bumi. Erlangga, 2007.
Warning: These citations may not always be 100% accurate.