APA (7th ed.) Citation

Gidal, S., & Gidal, T. (1964). Patrick von der grünen Insel. Orell Füssli.

Chicago Style (17th ed.) Citation

Gidal, Sonia, and Tim Gidal. Patrick Von Der Grünen Insel. Zürich: Orell Füssli, 1964.

MLA (9th ed.) Citation

Gidal, Sonia, and Tim Gidal. Patrick Von Der Grünen Insel. Orell Füssli, 1964.

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