APA (7th ed.) Citation

Prömel, H. J. (1986). Counting unlabeled structures.

Chicago Style (17th ed.) Citation

Prömel, Hans Jürgen. Counting Unlabeled Structures. Bonn, 1986.

MLA (9th ed.) Citation

Prömel, Hans Jürgen. Counting Unlabeled Structures. 1986.

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