Cita APA

Webster, D. (2001). Pingu loves english 1: Fun book (1a. ed.). England: Pearson Education.

Citación estilo Chicago

Webster, Diana. Pingu Loves English 1: Fun Book. 1a. ed. England: Pearson Education, 2001.

Cita MLA

Webster, Diana. Pingu Loves English 1: Fun Book. 1a. ed. England: Pearson Education, 2001.