Cita APA (7th ed.)

Bombardien, E., & Villa, S. Natulan: Procarbazine, In the Treatment of Malignant Neoplasm. F. HoffmannLa Roche & Co. Limited Company.

Cita Chicago (17th ed.)

Bombardien, Emilo, i Silvia Villa. Natulan: Procarbazine, In the Treatment of Malignant Neoplasm. Switzerland: F. HoffmannLa Roche & Co. Limited Company.

Cita MLA (9th ed.)

Bombardien, Emilo, i Silvia Villa. Natulan: Procarbazine, In the Treatment of Malignant Neoplasm. F. HoffmannLa Roche & Co. Limited Company.