Dyfyniad APA

Varel, V. H., Isaacson, H. R., & Bryant, M. P. (1977). Thermophilic methane production from cattle waste.

Dyfyniad Arddull Chicago

Varel, V H., H R. Isaacson, and M P. Bryant. Thermophilic Methane Production From Cattle Waste. 1977.

Dyfyniad MLA

Varel, V H., H R. Isaacson, and M P. Bryant. Thermophilic Methane Production From Cattle Waste. 1977.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.