Cita APA (7th ed.)

Lovell, K., & Smith, H. J. (1975). Two grade arithmetic: Book 1. Ginn & Co.

Cita Chicago (17th ed.)

Lovell, K., i H J. Smith. Two Grade Arithmetic: Book 1. Aylesbury, Bucks London: Ginn & Co, 1975.

Cita MLA (9th ed.)

Lovell, K., i H J. Smith. Two Grade Arithmetic: Book 1. Ginn & Co, 1975.