APA (7th ed.) Citation

Tetra & Degen, B. (1986). The discus-"King of the aquarium": A reference book for the discus lover. Tetra.

Chicago Style (17th ed.) Citation

Tetra and Bernd Degen. The Discus-"King of the Aquarium": A Reference Book for the Discus Lover. New Jersey: Tetra, 1986.

MLA (8th ed.) Citation

Tetra and Bernd Degen. The Discus-"King of the Aquarium": A Reference Book for the Discus Lover. Tetra, 1986.

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