Não informado. (1950). Agricultural and horticultural Engineering abstracts. National Institute of Agricultural Engineering.
Cita Chicago Style (17a ed.)Não informado. Agricultural and Horticultural Engineering Abstracts. Silsoe, Inglaterra: National Institute of Agricultural Engineering, 1950.
Cita MLA (8a ed.)Não informado. Agricultural and Horticultural Engineering Abstracts. National Institute of Agricultural Engineering, 1950.
Precaución: Estas citas no son 100% exactas.