APA (7th ed.) Citation

De la Cruz, R. . . . R. (1975). Public relations; theory and practice ([New ed.].). R. R. Public Relations.

Chicago Style (17th ed.) Citation

De la Cruz, R R. Public Relations; Theory and Practice. [New ed.]. Manila: R. R. Public Relations, 1975.

MLA (9th ed.) Citation

De la Cruz, R R. Public Relations; Theory and Practice. [New ed.]. R. R. Public Relations, 1975.