APA (7th ed.) Citation

Halle, T. G. (1933). The structure of certain fossil spore-bearing organs believed to belong to pteridosperms. Almqvist & Wiksell.

Chicago Style (17th ed.) Citation

Halle, Thore Gustav. The Structure of Certain Fossil Spore-bearing Organs Believed to Belong to Pteridosperms. Stockholm: Almqvist & Wiksell, 1933.

MLA (9th ed.) Citation

Halle, Thore Gustav. The Structure of Certain Fossil Spore-bearing Organs Believed to Belong to Pteridosperms. Almqvist & Wiksell, 1933.

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