Cita APA

Zim, H. S., & Schrotter, G. (1959). Your heart and how it works. W. Morrow.

Citación estilo Chicago

Zim, Herbert Spencer, and Gustav Schrotter. Your Heart and How It Works. [New York]: W. Morrow, 1959.

Cita MLA

Zim, Herbert Spencer, and Gustav Schrotter. Your Heart and How It Works. W. Morrow, 1959.

Warning: These citations may not always be 100% accurate.