APA استشهاد

Mittal, P., & Mittal, R. (1999). Conventional and objective type questions and answers on Civil Engineering for competition. G.K. Publishers Pvt Ltd.

استشهاد بنمط شيكاغو

Mittal, P., و R. Mittal. Conventional and Objective Type Questions and Answers on Civil Engineering for Competition. Jabalpur: G.K. Publishers Pvt Ltd, 1999.

MLA استشهاد

Mittal, P., و R. Mittal. Conventional and Objective Type Questions and Answers on Civil Engineering for Competition. G.K. Publishers Pvt Ltd, 1999.