APA (7th ed.) Citation

Krashen, S. D. (1989). Language acquisition and language education: Extensions and applications (1. publ. in Great Britain, 1. print.). Prentice Hall International.

Chicago Style (17th ed.) Citation

Krashen, Stephen D. Language Acquisition and Language Education: Extensions and Applications. 1. publ. in Great Britain, 1. print. Hemel Hempstead u.a: Prentice Hall International, 1989.

MLA (9th ed.) Citation

Krashen, Stephen D. Language Acquisition and Language Education: Extensions and Applications. 1. publ. in Great Britain, 1. print. Prentice Hall International, 1989.