Penggayaan APA
sumitro. (1990).
English for science and technology .
Yogyakarta:
Gajah Mada University.
Chicago Style
sumitro.
English for science and technology.
Yogyakarta:
Gajah Mada University,
1990.
Text.
MLA Style
sumitro.
English for science and technology.
Yogyakarta:
Gajah Mada University,
1990.
Text.
Turabian Style
sumitro.
English for science and technology.
Yogyakarta:
Gajah Mada University,
1990.
Print.