APA (7th ed.) Citation

Ople, B. F. (1975). Trends and principles in the Labor Code. Govt. Print. Off.

Chicago Style (17th ed.) Citation

Ople, Blas F. Trends and Principles in the Labor Code. Manila: Govt. Print. Off, 1975.

MLA (9th ed.) Citation

Ople, Blas F. Trends and Principles in the Labor Code. Govt. Print. Off, 1975.

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