Citazione Stile APA (7a Edizione)

Straker, A. (1996). Mental maths: For ages 5 to 7: teacher's book.

Citazione stile Chigago Style (17a edizione)

Straker, Anita. Mental Maths: For Ages 5 to 7: Teacher's Book. Cambridge, 1996.

Citatione MLA (9a ed.)

Straker, Anita. Mental Maths: For Ages 5 to 7: Teacher's Book. 1996.