Citazione APA

Southworth, G. V. D., & Southworth, J. V. D. (1958). A work book on Long ago in the Old World. Iroquois Pub. Co..

Stile di citazione Chicago

Southworth, Gertrude Van Duyn, e John Van Duyn Southworth. A Work Book on Long Ago in the Old World. Syracuse, N.Y.: Iroquois Pub. Co., 1958.

Citazione MLA

Southworth, Gertrude Van Duyn, e John Van Duyn Southworth. A Work Book on Long Ago in the Old World. Iroquois Pub. Co., 1958.