Aycardo, H. B., & Mamicpic, N. G. (1990). Recommended varieties of cowpea and sitao and their culture. The Department of Agronomy and Horticulture and the Office of the Director of Research (UPLB) coordinated by the University Extension Center, UPLB.
Cita Chicago (17th ed.)Aycardo, Hipolito B., i Noel Gayo Mamicpic. Recommended Varieties of Cowpea and Sitao and Their Culture. College, Laguna: The Department of Agronomy and Horticulture and the Office of the Director of Research (UPLB) coordinated by the University Extension Center, UPLB, 1990.
Cita MLA (9th ed.)Aycardo, Hipolito B., i Noel Gayo Mamicpic. Recommended Varieties of Cowpea and Sitao and Their Culture. The Department of Agronomy and Horticulture and the Office of the Director of Research (UPLB) coordinated by the University Extension Center, UPLB, 1990.