Cita APA (7th ed.)

Von Sperling, M. Waste stabilisation ponds.

Cita Chicago (17th ed.)

Von Sperling, Marcos. Waste Stabilisation Ponds.

Cita MLA (8th ed.)

Von Sperling, Marcos. Waste Stabilisation Ponds.

Atenció: Aquestes cites poden no estar 100% correctes.