APA Citatie

Heitefuss, R., & Williams, P. H. (1976). Encyclopaedia of plant physiology V .4: Physiological plant pathology. Springer-verlag.

Chicago Style citaat

Heitefuss, R., en P H. Williams. Encyclopaedia of Plant Physiology V .4: Physiological Plant Pathology. Berlin: Springer-verlag, 1976.

MLA citatie

Heitefuss, R., en P H. Williams. Encyclopaedia of Plant Physiology V .4: Physiological Plant Pathology. Springer-verlag, 1976.