APA citáció

Grätzer George A. & Knapp Edward. (2008). Notes on planar semimodular lattices II. Congruences. Szeged.

Chicago Style (17th ed.) Citation

Grätzer George A. and Knapp Edward. Notes on Planar Semimodular Lattices II. Congruences. Bolyai Institute, University of Szeged: Szeged, 2008.

MLA idézés

Grätzer George A. and Knapp Edward. Notes on Planar Semimodular Lattices II. Congruences. Szeged, 2008.