Gaya APA

How things work. (2000). America: Scolastic.

Gaya Chicago

How things work. Ed.1. America: Scolastic, 2000. Text.

Gaya MLA

How things work. Ed.1. America: Scolastic, 2000. Text.

Gaya Turabian

How things work. America: Scolastic, 2000. Print.