Cita APA

Harrison, L., & Hutchison, S. (2018). Bridge to IELTS: Pre-intermediate-Intermediate Band 3.5 to 4.5 (Student's Book). United Kingdom: National Geographic Learning.

Citación estilo Chicago

Harrison, Louis, y Susan Hutchison. Bridge to IELTS: Pre-intermediate-Intermediate Band 3.5 to 4.5 (Student's Book). United Kingdom: National Geographic Learning, 2018.

Cita MLA

Harrison, Louis, y Susan Hutchison. Bridge to IELTS: Pre-intermediate-Intermediate Band 3.5 to 4.5 (Student's Book). United Kingdom: National Geographic Learning, 2018.