APA

Hartmann P., Blass L., . (2007). Quest. 2. New York, NY: McGraw-Hill.

Chicago

Hartmann Pamela, Blass Laurie, . 2007. Quest. 2. New York, NY: McGraw-Hill.

Harvard

Hartmann P., Blass L., . (2007). Quest. 2. New York, NY: McGraw-Hill.

MLA

Hartmann Pamela, Blass Laurie, . Quest. 2. New York, NY: McGraw-Hill. 2007.