Gaya APA

Dahar, R, W. et al (1964). Learning and teaching in the secondary school improved instructional ì practices . Boston: Boston: Allyn and Bacon; 1964..

Gaya MLA

Dahar, Ratna, Wilis. et al. "Learning and teaching in the secondary school improved instructional ì practices". Boston: Boston: Allyn and Bacon; 1964., 1964. Text.