Gaya APA

Edwards, C, R, (. (1991). Davidson's principles and practice of medicine : a textbook for students and doctors (16th. Ed.). Edinburgh: ELBS Bouchier.

Gaya MLA

Edwards, Christopher, R.W, (editor). "Davidson's principles and practice of medicine : a textbook for students and doctors". 16th. Ed. Edinburgh: ELBS Bouchier, 1991. Text.