APA-ийн эшлэл(7 дахь хэвлэлт)

Strevens, P. (1964). The practical study of languages: A guide for teachers and learners (1a. ed.). Oxford University Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Strevens, Peter. The Practical Study of Languages: A Guide for Teachers and Learners. 1a. ed. Londres: Oxford University Press, 1964.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Strevens, Peter. The Practical Study of Languages: A Guide for Teachers and Learners. 1a. ed. Oxford University Press, 1964.