APA Style

Grätzer, G. (2016). The Congruences of a Finite Lattice A "Proof-by-Picture" Approach (2). Birkhäuser Cham: Birkhäuser Cham.

MLA Style

Grätzer, George. "The Congruences of a Finite Lattice A "Proof-by-Picture" Approach". 2 Birkhäuser Cham: Birkhäuser Cham, 2016. Text.