APA (7th ed.) Citation

Hesse, W. (1978). Two-level graph grammars.

Chicago Style (17th ed.) Citation

Hesse, Wolfgang. Two-level Graph Grammars. München, 1978.

MLA (9th ed.) Citation

Hesse, Wolfgang. Two-level Graph Grammars. 1978.

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