Gaya APA

edelen, R, D, C, D, J, S. (1977). Case Studies in Echocardiography : a diagnostic workbook . Philadelphia: w.b. saunders.

Gaya MLA

edelen, Ralph, D., Clark, Dan, John, S.. "Case Studies in Echocardiography : a diagnostic workbook ". Philadelphia: w.b. saunders, 1977. Text.