APA (7e ed.) Bronvermelding

Ruiz, L. (1971). The research, evaluation and guidance supervisors: Experiential backgrounds and functions. s.n.].

Chicago (17e ed.) Bronvermelding

Ruiz, Lirio. The Research, Evaluation and Guidance Supervisors: Experiential Backgrounds and Functions. [Quezon City: s.n.], 1971.

MLA (9e ed.) Bronvermelding

Ruiz, Lirio. The Research, Evaluation and Guidance Supervisors: Experiential Backgrounds and Functions. s.n.], 1971.