Παραπομπή APA

Hard, M. E. (1961). mashroom: Edible and otherwise its habitat and its time of growth. Hafner Publishing.

Παραπομπή Chicago Style

Hard, M. E. Mashroom: Edible and Otherwise Its Habitat and Its Time of Growth. New York: Hafner Publishing, 1961.

Παραπομπή MLA

Hard, M. E. Mashroom: Edible and Otherwise Its Habitat and Its Time of Growth. Hafner Publishing, 1961.