APA (7th ed.) Citation

Bily, J., & Kellenberger, M. Malý astronaut.

Chicago Style (17th ed.) Citation

Bily, Jozef, and Martin Kellenberger. Malý Astronaut.

MLA (9th ed.) Citation

Bily, Jozef, and Martin Kellenberger. Malý Astronaut.

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