एपीए उद्धरण

Gopalan, N. P. (1972). Construction and standardization of a vocational interest inventory for the secondary school pupils of kerala.

शिकागो स्टाइल उद्धरण

Gopalan, N. P. Construction and Standardization of a Vocational Interest Inventory for the Secondary School Pupils of Kerala. 1972.

एमएलए उद्धरण

Gopalan, N. P. Construction and Standardization of a Vocational Interest Inventory for the Secondary School Pupils of Kerala. 1972.