Citazione Stile APA (7a Edizione)

Helene J. Jordan. (1992). How a Seed Grows (Let's-Read-and-Find-Out Science 1) (Revised ed.). HarperCollins.

Citazione stile Chigago Style (17a edizione)

Helene J. Jordan. How a Seed Grows (Let's-Read-and-Find-Out Science 1). Revised ed. HarperCollins, 1992.

Citatione MLA (9a ed.)

Helene J. Jordan. How a Seed Grows (Let's-Read-and-Find-Out Science 1). Revised ed. HarperCollins, 1992.