APA (7th ed.) Citation

Gissing, V., & Zmatlíková, H. (1984). Happy Days Story Book (1. pbl.). Treasure Press.

Chicago Style (17th ed.) Citation

Gissing, Vera, and Helena Zmatlíková. Happy Days Story Book. 1. pbl. London: Treasure Press, 1984.

MLA (9th ed.) Citation

Gissing, Vera, and Helena Zmatlíková. Happy Days Story Book. 1. pbl. Treasure Press, 1984.

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