Science and Mathematics Education Manpower Development Project. (1998). Sourcebook on practical work for teacher trainers: Elementary school science, vol.1. SMEMDP.
Παραπομπή σε μορφή Chicago (17η εκδ.)Science and Mathematics Education Manpower Development Project. Sourcebook on Practical Work for Teacher Trainers: Elementary School Science, Vol.1. Diliman, Quezon City: SMEMDP, 1998.
Παραπομπή σε μορφή MLA (9th εκδ.)Science and Mathematics Education Manpower Development Project. Sourcebook on Practical Work for Teacher Trainers: Elementary School Science, Vol.1. SMEMDP, 1998.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.