Styl cytowania APA

Bhaskaran, M., & Horsburgh, D. (1976). Strengthen your English. O U P.

Styl cytowania Chicago

Bhaskaran, M., i D. Horsburgh. Strengthen Your English. Delhi: O U P, 1976.

Styl cytowania MLA

Bhaskaran, M., i D. Horsburgh. Strengthen Your English. O U P, 1976.