Citazione APA

(1999). Learn to speak English: Complete interactive English course for non-native speaker. Fremont, CA.: The Learning Company.

Stile di citazione Chicago

Learn to Speak English: Complete Interactive English Course for Non-native Speaker. Fremont, CA.: The Learning Company, 1999.

Citazione MLA

Learn to Speak English: Complete Interactive English Course for Non-native Speaker. Fremont, CA.: The Learning Company, 1999.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.