Cita APA (7th ed.)
Bolton, W. (1977). Physical science. Blackie.
Cita Chicago (17th ed.)
Bolton, W. Physical Science. London: Blackie, 1977.
Cita MLA (9th ed.)
Bolton, W. Physical Science. Blackie, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.