Παραπομπή σε μορφή APA (7η εκδ.)

Freese, R. S. (1977). The structure of modular lattices of width four with applications to varieties of lattices. American Mathematical Society.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Freese, Ralph S. The Structure of Modular Lattices of Width Four with Applications to Varieties of Lattices. Providence, R.I.: American Mathematical Society, 1977.

Παραπομπή σε μορφή MLA (9th εκδ.)

Freese, Ralph S. The Structure of Modular Lattices of Width Four with Applications to Varieties of Lattices. American Mathematical Society, 1977.