APA aipamena

State Planning Board. (1987). Annual Plan Proposals 1988 - 89. Govt. of Kerala.

Chicago Style aipamena

State Planning Board. Annual Plan Proposals 1988 - 89. Trivandrum: Govt. of Kerala, 1987.

MLA aipamena

State Planning Board. Annual Plan Proposals 1988 - 89. Govt. of Kerala, 1987.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.