Παραπομπή APA

Ouseph, P. P. (1992). Distribution of some selected toxic metals in the Cochin harbour region. Centre for Earth Science Studies.

Παραπομπή Chicago Style

Ouseph, P. P. Distribution of Some Selected Toxic Metals in the Cochin Harbour Region. Thiruvananthapuram: Centre for Earth Science Studies, 1992.

Παραπομπή MLA

Ouseph, P. P. Distribution of Some Selected Toxic Metals in the Cochin Harbour Region. Centre for Earth Science Studies, 1992.