APA citiranje

Dorling Kindersley, I. (2005). 15-minute German: Learn German in just 15 minutes a day. New York, NY: Dorling Kindersley, Inc.

Trích dẫn kiểu Chicago

Dorling Kindersley, Inc. 15-minute German: Learn German in Just 15 Minutes a Day. New York, NY: Dorling Kindersley, Inc, 2005.

MLA citiranje

Dorling Kindersley, Inc. 15-minute German: Learn German in Just 15 Minutes a Day. New York, NY: Dorling Kindersley, Inc, 2005.