Virginia Polytechnic Institute and State University & Virginia Agricultural Experiment Station. (1981). Bulletin. Virginia Polytechnic Institute and State University.
Citação do estilo Chicago (17ª ed.)Virginia Polytechnic Institute and State University e Virginia Agricultural Experiment Station. Bulletin. Blacksburg: Virginia Polytechnic Institute and State University, 1981.
Citação MLA (8ª ed.)Virginia Polytechnic Institute and State University e Virginia Agricultural Experiment Station. Bulletin. Virginia Polytechnic Institute and State University, 1981.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.