Gaya APA
Guth, H.
(1971).
Today A text workbook for English language and composition
(
1971)
.
:
New York: Mc Graw Hill,.
Gaya MLA
Guth, H.P..
"Today A text workbook for English language and composition".
1971
:
New York: Mc Graw Hill,,
1971.
Text.