Παραπομπή APA

Gupta, H. K. (2003). Energy from the oceans. Centre for Earth Science Studies.

Παραπομπή Chicago Style

Gupta, Harsh K. Energy from the Oceans. Thiruvananthapuram: Centre for Earth Science Studies, 2003.

Παραπομπή MLA

Gupta, Harsh K. Energy from the Oceans. Centre for Earth Science Studies, 2003.