APA-Zitierstil (7. Ausg.)

Babel, L., Ponomarenko, I. N., & Tinhofer, G. (1994). The isomorphism problem for directed path graphs and for rooted directed path graphs.

Chicago-Zitierstil (17. Ausg.)

Babel, Luitpold, Ilʹja N. Ponomarenko, und Gottfried Tinhofer. The Isomorphism Problem for Directed Path Graphs and for Rooted Directed Path Graphs. München, 1994.

MLA-Zitierstil (9. Ausg.)

Babel, Luitpold, et al. The Isomorphism Problem for Directed Path Graphs and for Rooted Directed Path Graphs. 1994.

Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.