एपीए उद्धरण

McDonald, A., Harris, A., Jefferson, K., Marshall, J., & McDonald, L. (1971). Association of prolapse of posterior cusp of mitral valve and atrial septal defect.

शिकागो स्टाइल उद्धरण

McDonald, A., A. Harris, K. Jefferson, J. Marshall, और L. McDonald. Association of Prolapse of Posterior Cusp of Mitral Valve and Atrial Septal Defect. 1971.

एमएलए उद्धरण

McDonald, A., et al. Association of Prolapse of Posterior Cusp of Mitral Valve and Atrial Septal Defect. 1971.