APA (7th ed.) Citation

Hirmer, M., Troll, W., & Pia, J. (1927). Handbuch der Palaobotanik: Band 1, Thallophyta, Bryophyta, Pteridophyta. R. Oldenbourg.

Chicago Style (17th ed.) Citation

Hirmer, Max, Wilhelm Troll, and Julius Pia. Handbuch Der Palaobotanik: Band 1, Thallophyta, Bryophyta, Pteridophyta. Munchen: R. Oldenbourg, 1927.

MLA (8th ed.) Citation

Hirmer, Max, et al. Handbuch Der Palaobotanik: Band 1, Thallophyta, Bryophyta, Pteridophyta. R. Oldenbourg, 1927.