Gaya APA

Sacher, R, A., McPherson, R, A. (1991). Widmann's clinical interpretation of laboratory tests (10th. Ed.). Singapore: PG Publishing.

Gaya MLA

Sacher, Ronald, A.., McPherson, Richard, A.. "Widmann's clinical interpretation of laboratory tests". 10th. Ed. Singapore: PG Publishing, 1991. Text.