APA-čujuhus (7. p.)

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

Chicago-čujuhus (17. p.)

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

MLA-čujuhus (9. p.)

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

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