APA (7th ed.) Citation

Pravda, J. Foundations of the Morphography of Cartographical Symbols.

Chicago Style (17th ed.) Citation

Pravda, Ján. Foundations of the Morphography of Cartographical Symbols.

MLA (9th ed.) Citation

Pravda, Ján. Foundations of the Morphography of Cartographical Symbols.

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