APA (7th ed.) Citation

Rükl, A., & Kuthanová, O. (1985). The Amateur Astronomer. Peerage Books.

Chicago Style (17th ed.) Citation

Rükl, Antonín, and Olga Kuthanová. The Amateur Astronomer. London: Peerage Books, 1985.

MLA (9th ed.) Citation

Rükl, Antonín, and Olga Kuthanová. The Amateur Astronomer. Peerage Books, 1985.

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