Παραπομπή APA

Ellsworth, J. H., & Ellsworth, M. V. New internet business book. John Willy and sons.

Παραπομπή Chicago Style

Ellsworth, Jill H., και Mathew V. Ellsworth. New Internet Business Book. New York: John Willy and sons.

Παραπομπή MLA

Ellsworth, Jill H., και Mathew V. Ellsworth. New Internet Business Book. John Willy and sons.