Gaya APA
HEATON, J., METHOLD, K.
(1973).
READING WITH UNDERSTANDING INTERMEDIATE 3
.
Yogyakarta:
KANISIUS.
Gaya MLA
HEATON, J.B., METHOLD, K..
"READING WITH UNDERSTANDING INTERMEDIATE 3".
Yogyakarta:
KANISIUS,
1973.
Text.