Gaya APA

Fleischer, A, (, E, -, A, ). (1991). The Principles and Practice of Ultrasonography in Obstetrics and Gynecology (Fourth Edition). Norwalk, California: Appleton & Lange.

Gaya MLA

Fleischer, Arthur, (, Et, -, Al, ). "The Principles and Practice of Ultrasonography in Obstetrics and Gynecology". Fourth Edition Norwalk, California: Appleton & Lange, 1991. Text.