APA (7th ed.) Citation

Tongko,Primo L. (1988). The Philippine government (revised edition.). NBS.

Chicago Style (17th ed.) Citation

Tongko,Primo L. The Philippine Government. revised edition. Mla: NBS, 1988.

MLA (9th ed.) Citation

Tongko,Primo L. The Philippine Government. revised edition. NBS, 1988.

Warning: These citations may not always be 100% accurate.