APA استشهاد

Vivek K Gupta & Manoj Kaushik. Upkar's objective commerce. Upkar prakashan.

استشهاد بنمط شيكاغو

Vivek K Gupta و Manoj Kaushik. Upkar's Objective Commerce. Agra: Upkar prakashan.

MLA استشهاد

Vivek K Gupta و Manoj Kaushik. Upkar's Objective Commerce. Upkar prakashan.