Erdtman, G. (1966). Pollen morphology and plant taxonomy: An introduction to palynology. Hafner Publishing.
Citazione stile Chigago Style (17a edizione)Erdtman, G. Pollen Morphology and Plant Taxonomy: An Introduction to Palynology. New York: Hafner Publishing, 1966.
Citatione MLA (9a ed.)Erdtman, G. Pollen Morphology and Plant Taxonomy: An Introduction to Palynology. Hafner Publishing, 1966.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.