APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.