APA (7th ed.) Citation

Brebbia, C. (1976). Mathematical models for environmental problems. Pentech Press.

Chicago Style (17th ed.) Citation

Brebbia, C.A. Mathematical Models for Environmental Problems. London: Pentech Press, 1976.

MLA (9th ed.) Citation

Brebbia, C.A. Mathematical Models for Environmental Problems. Pentech Press, 1976.

Warning: These citations may not always be 100% accurate.