Citazione Stile APA (7a Edizione)

Kathleen Weidner Zoehfeld. (1994). What Lives in a Shell? (Let's-Read-and-Find-Out Science 1) (1.). HarperCollins.

Citazione stile Chigago Style (17a edizione)

Kathleen Weidner Zoehfeld. What Lives in a Shell? (Let's-Read-and-Find-Out Science 1). 1. HarperCollins, 1994.

Citatione MLA (9a ed.)

Kathleen Weidner Zoehfeld. What Lives in a Shell? (Let's-Read-and-Find-Out Science 1). 1. HarperCollins, 1994.