APA (7th ed.) Citation

Valenzuela, J. Z. (1933). History of journalism in the Philippine Islands. The author.

Chicago Style (17th ed.) Citation

Valenzuela, Jesus Z. History of Journalism in the Philippine Islands. Manila: The author, 1933.

MLA (9th ed.) Citation

Valenzuela, Jesus Z. History of Journalism in the Philippine Islands. The author, 1933.