Παραπομπή APA

Becker, E. (1978). Hereditarily-pythagorean fields and orderings of higher level. Rio de Janeiro: Instituto de Matematica Pura e Aplicada.

Παραπομπή Chicago Style

Becker, Eberhard. Hereditarily-pythagorean Fields and Orderings of Higher Level. Rio de Janeiro: Instituto de Matematica Pura e Aplicada, 1978.

Παραπομπή MLA

Becker, Eberhard. Hereditarily-pythagorean Fields and Orderings of Higher Level. Rio de Janeiro: Instituto de Matematica Pura e Aplicada, 1978.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.