Gaya APA

Soule, G. (1952). Introduction to economic science, [2d pr.]. -- Mentor books, M 58. Penerbitan asli 1948. . [New York]: The new American library.

Gaya MLA

Soule, G.. "Introduction to economic science, [2d pr.]. -- Mentor books, M 58. Penerbitan asli 1948. ". [New York]: The new American library, 1952. Buku.