APA (7th ed.) Citation

Elefano, R. P., & Guzman, M. P. (1961). The preparation and utilization of langka powder.

Chicago Style (17th ed.) Citation

Elefano, Rosario Principe, and Matilde P. Guzman. The Preparation and Utilization of Langka Powder. [Queon City], 1961.

MLA (9th ed.) Citation

Elefano, Rosario Principe, and Matilde P. Guzman. The Preparation and Utilization of Langka Powder. 1961.

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