(1996). Sourcebook on practical work: High school earth/environmental science (Exp'l ed.). SMEMDP].
Chicago Style (17. basım) AtıfSourcebook on Practical Work: High School Earth/environmental Science. Exp'l ed. [Diliman, Quezon City: SMEMDP], 1996.
MLA (9th ed.) AtıfSourcebook on Practical Work: High School Earth/environmental Science. Exp'l ed. SMEMDP], 1996.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..