APA Баримт

Perry D.J., S. J. (1977). College vocabulary building (6.). Express Publishing.

Чикаго маягийн жагсаалт

Perry D.J., Silverthorn J.E. College Vocabulary Building. 6. Cincinnati: Express Publishing, 1977.

MLA ишлэл

Perry D.J., Silverthorn J.E. College Vocabulary Building. 6. Express Publishing, 1977.