Virginia Polytechnic Institute and State University & Virginia Agricultural Experiment Station. (1981). Bulletin. Virginia Polytechnic Institute and State University.
Citación estilo ChicagoVirginia Polytechnic Institute and State University and Virginia Agricultural Experiment Station. Bulletin. Blacksburg: Virginia Polytechnic Institute and State University, 1981.
Cita MLAVirginia Polytechnic Institute and State University and Virginia Agricultural Experiment Station. Bulletin. Virginia Polytechnic Institute and State University, 1981.
Warning: These citations may not always be 100% accurate.