APA (7th ed.) Citation

Gittelson, B. (1978). The gittelson biorhythm code boek. Arco Publ.

Chicago Style (17th ed.) Citation

Gittelson, Bernard. The Gittelson Biorhythm Code Boek. Arco Publ, 1978.

MLA (8th ed.) Citation

Gittelson, Bernard. The Gittelson Biorhythm Code Boek. Arco Publ, 1978.

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