एपीए उद्धरण

Williams, R. E. O. (1949). Examination of floor dust for haemolytic streptococci.

शिकागो स्टाइल उद्धरण

Williams, R. E. O. Examination of Floor Dust for Haemolytic Streptococci. 1949.

एमएलए उद्धरण

Williams, R. E. O. Examination of Floor Dust for Haemolytic Streptococci. 1949.