APA (7th ed.) Citation

PELFS, W. (1970). Citrus - Cultivation an fertilization - Wolfgang delfs-Fritz - Wolfgang Pelfs. Bingen on Rhine.

Chicago Style (17th ed.) Citation

PELFS, Wolfgang. Citrus - Cultivation an Fertilization - Wolfgang Delfs-Fritz - Wolfgang Pelfs. Bingen on Rhine, 1970.

MLA (8th ed.) Citation

PELFS, Wolfgang. Citrus - Cultivation an Fertilization - Wolfgang Delfs-Fritz - Wolfgang Pelfs. Bingen on Rhine, 1970.

Warning: These citations may not always be 100% accurate.