Παραπομπή APA

Mahajan, G. (1995). Ground water surveys and investigation. Ashish.

Παραπομπή Chicago Style

Mahajan, Gautam. Ground Water Surveys and Investigation. New Delhi: Ashish, 1995.

Παραπομπή MLA

Mahajan, Gautam. Ground Water Surveys and Investigation. Ashish, 1995.