APA (7th ed.) Citation

Černý, L. Some knowledges of the Complementary Astronomical Education in Basic Schools.

Chicago Style (17th ed.) Citation

Černý, Ladislav. Some Knowledges of the Complementary Astronomical Education in Basic Schools.

MLA (9th ed.) Citation

Černý, Ladislav. Some Knowledges of the Complementary Astronomical Education in Basic Schools.

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