APA-referens

Gratzer, G. A. (2003). General lattice theory.- 2nd ed. (2nd ed.). Birkh�user Verlag.

Chicago-stil citat

Gratzer, George A. General Lattice Theory.- 2nd Ed. 2nd ed. Basel ; Boston: Birkh�user Verlag, 2003.

MLA-referens

Gratzer, George A. General Lattice Theory.- 2nd Ed. 2nd ed. Birkh�user Verlag, 2003.