Hoyt, E., & Brown, S. (1988). Conserving the wild relatives of crops. Rome, Italy: International Board for Plant Genetic Resources (IBPGR); Gland, Switzerland : International Union for Conservation of Nature and Natural Resources (IUCN) : World Wide Fund for Nature (WWF).
استشهاد بنمط شيكاغوHoyt, Erich., و Susanah Brown. Conserving the Wild Relatives of Crops. Rome, Italy: International Board for Plant Genetic Resources (IBPGR); Gland, Switzerland : International Union for Conservation of Nature and Natural Resources (IUCN) : World Wide Fund for Nature (WWF), 1988.
MLA استشهادHoyt, Erich., و Susanah Brown. Conserving the Wild Relatives of Crops. Rome, Italy: International Board for Plant Genetic Resources (IBPGR); Gland, Switzerland : International Union for Conservation of Nature and Natural Resources (IUCN) : World Wide Fund for Nature (WWF), 1988.