APA (7th ed.) Citation

Krutwig, R. (1983). Judo, mein Freizeitsport. Humboldt.

Chicago Style (17th ed.) Citation

Krutwig, Rolf-Jürgen. Judo, Mein Freizeitsport. München: Humboldt, 1983.

MLA (9th ed.) Citation

Krutwig, Rolf-Jürgen. Judo, Mein Freizeitsport. Humboldt, 1983.

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