Cita APA (7a ed.)

Symposium on Pharmacognosy and Phytochemistry, Hörhammer, L., & Wagner, H. (1971). Pharmacognosy and phytochemistry: 1st International Congress, Munich, 1970. Springer.

Cita Chicago Style (17a ed.)

Symposium on Pharmacognosy and Phytochemistry, Ludwig Hörhammer, y Heinrich Wagner. Pharmacognosy and Phytochemistry: 1st International Congress, Munich, 1970. Berlin [etc.]: Springer, 1971.

Cita MLA (9a ed.)

Symposium on Pharmacognosy and Phytochemistry, et al. Pharmacognosy and Phytochemistry: 1st International Congress, Munich, 1970. Springer, 1971.