APA Style

WATCYN, Peter. (1990). Test Your Vocabulary 1 . Jakarta: Gelatik.

Chicago Style

WATCYN, Peter. Test Your Vocabulary 1. Jakarta: Gelatik, 1990. Text.

MLA Style

WATCYN, Peter. Test Your Vocabulary 1. Jakarta: Gelatik, 1990. Text.

Turabian Style

WATCYN, Peter. Test Your Vocabulary 1. Jakarta: Gelatik, 1990. Print.