Cita APA (7a ed.)

Leech, G. (1981). Echo findings in the normal heart. Medi-Cine.

Cita Chicago Style (17a ed.)

Leech, Graham. Echo Findings in the Normal Heart. London: Medi-Cine, 1981.

Cita MLA (9a ed.)

Leech, Graham. Echo Findings in the Normal Heart. Medi-Cine, 1981.