Cita APA (7th ed.)
Rybczynski, W. (1981). Double-Valt Composting Toilets: A State of the Art Review. McGill University.
Cita Chicago (17th ed.)
Rybczynski, Witold. Double-Valt Composting Toilets: A State of the Art Review. Montreal, Canadá: McGill University, 1981.
Cita MLA (9th ed.)
Rybczynski, Witold. Double-Valt Composting Toilets: A State of the Art Review. McGill University, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.