Cita APA (7th ed.)
Beer, F. P., & Johnston, E. R. (1977). Vector mechanics for engineers (3d ed.). McGraw-Hill.
Cita Chicago (17th ed.)
Beer, Ferdinand Pierre, i E. Russell Johnston. Vector Mechanics for Engineers. 3d ed. New Delhi: McGraw-Hill, 1977.
Cita MLA (9th ed.)
Beer, Ferdinand Pierre, i E. Russell Johnston. Vector Mechanics for Engineers. 3d ed. McGraw-Hill, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.