APA (7th ed.) Citation

Frei, E. J. (1959). The historical development of the Philippine national language. Bureau of Print.

Chicago Style (17th ed.) Citation

Frei, Ernest John. The Historical Development of the Philippine National Language. Manila: Bureau of Print, 1959.

MLA (9th ed.) Citation

Frei, Ernest John. The Historical Development of the Philippine National Language. Bureau of Print, 1959.

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