APA

Sharpe P. J., . (1986). How to prepare for the TOEFL test of english as a foreign language. New York: Barron´s.

Chicago

Sharpe Pamela J, . 1986. How to prepare for the TOEFL test of english as a foreign language. New York: Barron´s.

Harvard

Sharpe P. J., . (1986). How to prepare for the TOEFL test of english as a foreign language. New York: Barron´s.

MLA

Sharpe Pamela J, . How to prepare for the TOEFL test of english as a foreign language. New York: Barron´s. 1986.