APA aipamena

SHEELER, W. D. (1991). WELCOME TO ENGLISH BOOK 6. OXPORD UNIVERSITY PRESS.

Chicago Style aipamena

SHEELER, WILLARD D. WELCOME TO ENGLISH BOOK 6. OXPORD UNIVERSITY PRESS, 1991.

MLA aipamena

SHEELER, WILLARD D. WELCOME TO ENGLISH BOOK 6. OXPORD UNIVERSITY PRESS, 1991.