Παραπομπή APA

Venkiteswaran , S. .. (1977). Petrochemicals. Colour publications Ltd.

Παραπομπή Chicago Style

Venkiteswaran , S .L. Petrochemicals. Bombay: Colour publications Ltd, 1977.

Παραπομπή MLA

Venkiteswaran , S .L. Petrochemicals. Colour publications Ltd, 1977.