Παραπομπή APA

Gratzer, G. A. (1971). Lattice theory: First concepts and distributive lattices. W. H. Freeman.

Παραπομπή Chicago Style

Gratzer, George A. Lattice Theory: First Concepts and Distributive Lattices. San Francisco: W. H. Freeman, 1971.

Παραπομπή MLA

Gratzer, George A. Lattice Theory: First Concepts and Distributive Lattices. W. H. Freeman, 1971.