Gaya APA
STEINBERG, R. (1987).
PRENTICE-HALL'S PRACTICE TESTS FOR THE TOEFL .
ENGLEWOOD CLIFFS, NEW JERSEY:
Prentice-Hall, Inc.
Gaya MLA
STEINBERG, ROBERTA.
"PRENTICE-HALL'S PRACTICE TESTS FOR THE TOEFL".
ENGLEWOOD CLIFFS, NEW JERSEY:
Prentice-Hall, Inc,
1987.
Text.