Cita APA (7a ed.)

Newell, L. C., & Keim, F. D. (1947). Effects of Mowing Frequency on the Yield and Protein Content of Several Grasses Grown in Pure Stands.

Cita Chicago Style (17a ed.)

Newell, L. C., y F. D. Keim. Effects of Mowing Frequency on the Yield and Protein Content of Several Grasses Grown in Pure Stands. Lincoln, 1947.

Cita MLA (9a ed.)

Newell, L. C., y F. D. Keim. Effects of Mowing Frequency on the Yield and Protein Content of Several Grasses Grown in Pure Stands. 1947.