Science and Mathematics Education Manpower Development Project (SMEMDP) & Tan, M. C. (1998). Sourcebook on practical work for teacher trainers: High school earth/environmental science (Exp'l ed.). SMEMDP.
Čikaški stil citiranja (17. izdanje)Science and Mathematics Education Manpower Development Project (SMEMDP) i Merle C. Tan. Sourcebook on Practical Work for Teacher Trainers: High School Earth/environmental Science. Exp'l ed. Diliman, Quezon City: SMEMDP, 1998.
MLA način citiranja (9. izdanje)Science and Mathematics Education Manpower Development Project (SMEMDP) i Merle C. Tan. Sourcebook on Practical Work for Teacher Trainers: High School Earth/environmental Science. Exp'l ed. SMEMDP, 1998.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.