Gupta, V. (2009). Vocabulary and Comprehension Skills. Penguin Books.
Chicago-čujuhus (17. p.)Gupta, Vaishali. Vocabulary and Comprehension Skills. USA: Penguin Books, 2009.
MLA-čujuhus (9. p.)Gupta, Vaishali. Vocabulary and Comprehension Skills. Penguin Books, 2009.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.