Cita APA (7th ed.)

Nilsson, M. P., & Fielden, J. (1960). Primitive time-reckoning: A study in the origins and first development of the art of counting time among the primitive and early culture peoples ([2nd ed.].). C.W.K. Gleerup.

Cita Chicago (17th ed.)

Nilsson, Martin Persson, i Joshua Fielden. Primitive Time-reckoning: A Study in the Origins and First Development of the Art of Counting Time Among the Primitive and Early Culture Peoples. [2nd ed.]. Lund: C.W.K. Gleerup, 1960.

Cita MLA (9th ed.)

Nilsson, Martin Persson, i Joshua Fielden. Primitive Time-reckoning: A Study in the Origins and First Development of the Art of Counting Time Among the Primitive and Early Culture Peoples. [2nd ed.]. C.W.K. Gleerup, 1960.