APA (7th ed.) Citation

Penn, I. (1970). Malignant Tumors in Organ Transplant Recipients. Springer Berlin Heidelberg.

Chicago Style (17th ed.) Citation

Penn, Israel. Malignant Tumors in Organ Transplant Recipients. Berlin, Heidelberg: Springer Berlin Heidelberg, 1970.

MLA (9th ed.) Citation

Penn, Israel. Malignant Tumors in Organ Transplant Recipients. Springer Berlin Heidelberg, 1970.