Παραπομπή σε μορφή APA (7η εκδ.)

Whittaker, E. S., & Robinson, G. M. (1944). The calculus of observations: A treatise on numerical mathematics (4th edition.). Blackie & Son.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Whittaker, Edmund Sir, και G. M. Robinson. The Calculus of Observations: A Treatise on Numerical Mathematics. 4th edition. London: Blackie & Son, 1944.

Παραπομπή σε μορφή MLA (8th εκδ.)

Whittaker, Edmund Sir, και G. M. Robinson. The Calculus of Observations: A Treatise on Numerical Mathematics. 4th edition. Blackie & Son, 1944.