APA (7th ed.) Citation

Braun, P. B. (1956). The crystal structures of a new group of ferromagnetic compounds ... s.n.].

Chicago Style (17th ed.) Citation

Braun, Poul Bernard. The Crystal Structures of a New Group of Ferromagnetic Compounds ... [Amsterdam?: s.n.], 1956.

MLA (8th ed.) Citation

Braun, Poul Bernard. The Crystal Structures of a New Group of Ferromagnetic Compounds ... s.n.], 1956.