APA (7th ed.) Citation

Grout, A. R. (1970). Methane gas generation from manure. Cooperative Extension Service, Pennsylvania State University.

Chicago Style (17th ed.) Citation

Grout, A. Roger. Methane Gas Generation from Manure. [University Park]: Cooperative Extension Service, Pennsylvania State University, 1970.

MLA (9th ed.) Citation

Grout, A. Roger. Methane Gas Generation from Manure. Cooperative Extension Service, Pennsylvania State University, 1970.