Citazione Stile APA (7a Edizione)

(2000). McGraw Hill science: Grade 2. McGraw Hill School Division.

Citazione stile Chigago Style (17a edizione)

McGraw Hill Science: Grade 2. New York: McGraw Hill School Division, 2000.

Citatione MLA (9a ed.)

McGraw Hill Science: Grade 2. McGraw Hill School Division, 2000.