Cita APA (7th ed.)
Halpin, B. (1975). Patterns of animal disease. Baillière Tindall.
Cita Chicago (17th ed.)
Halpin, Brendan. Patterns of Animal Disease. London: Baillière Tindall, 1975.
Cita MLA (9th ed.)
Halpin, Brendan. Patterns of Animal Disease. Baillière Tindall, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.