Wheeler, W., & Hill, D. (1957). Grassland seeds: A handbook of information about the grass and legume seeds used for forage, pasture, soil conservation and other turf planting in the United States. D. Van Nostrand Company.
Cita Chicago Style (17a ed.)Wheeler, W.A, y D.D Hill. Grassland Seeds: A Handbook of Information About the Grass and Legume Seeds Used for Forage, Pasture, Soil Conservation and Other Turf Planting in the United States. Princeton: D. Van Nostrand Company, 1957.
Cita MLA (8a ed.)Wheeler, W.A, y D.D Hill. Grassland Seeds: A Handbook of Information About the Grass and Legume Seeds Used for Forage, Pasture, Soil Conservation and Other Turf Planting in the United States. D. Van Nostrand Company, 1957.
Precaución: Estas citas no son 100% exactas.