एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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