Gaya APA

RICHARD, J, C. et al (1991). INTERCHANGE FOURTH EDITION: STUDENTS BOOK 3 . JAKARTA BARAT: CAMBRIDGE UNIVERSITY PRESS.

Gaya MLA

RICHARD, JACK, C. et al. "INTERCHANGE FOURTH EDITION: STUDENTS BOOK 3". JAKARTA BARAT: CAMBRIDGE UNIVERSITY PRESS, 1991. Text.