APA

Feigenbaum H., Armstrong W. F. & Ryan T. (2005). Feigenbaum`s echocardiography. Philadelphia: Lippincott Williams & Wilkins.

Chicago

Feigenbaum Harvey, Armstrong William F and Ryan Thomas. 2005. Feigenbaum`s echocardiography. Philadelphia: Lippincott Williams & Wilkins.

Harvard

Feigenbaum H., Armstrong W. F. and Ryan T. (2005). Feigenbaum`s echocardiography. Philadelphia: Lippincott Williams & Wilkins.

MLA

Feigenbaum Harvey, Armstrong William F and Ryan Thomas. Feigenbaum`s echocardiography. Philadelphia: Lippincott Williams & Wilkins. 2005.