APA (7th ed.) Citation

Lorenz, F., & Osers, E. (1961). The mysterious world of rays. G.G. Harrap.

Chicago Style (17th ed.) Citation

Lorenz, Friedrich, and E. Osers. The Mysterious World of Rays. London: G.G. Harrap, 1961.

MLA (9th ed.) Citation

Lorenz, Friedrich, and E. Osers. The Mysterious World of Rays. G.G. Harrap, 1961.

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