APA

Siffert R. S., . (1980). How your child's body grows. New York: Grosset & Dunlap.

Chicago

Siffert Robert S, . 1980. How your child's body grows. New York: Grosset & Dunlap.

Harvard

Siffert R. S., . (1980). How your child's body grows. New York: Grosset & Dunlap.

MLA

Siffert Robert S, . How your child's body grows. New York: Grosset & Dunlap. 1980.