एपीए उद्धरण

Gopikuttan, G. (1987). Quantitative methods and operations research: For business and economics. Himalaya publishing house.

शिकागो स्टाइल उद्धरण

Gopikuttan, G. Quantitative Methods and Operations Research: For Business and Economics. Bombay: Himalaya publishing house, 1987.

एमएलए उद्धरण

Gopikuttan, G. Quantitative Methods and Operations Research: For Business and Economics. Himalaya publishing house, 1987.