APA

Mitchell D., . (2019). Simple steam: 50+ science, technology, engineering, art, math activities for ages 3 to 6. : Gryphon House Inc.

Chicago

Mitchell Debby, . 2019. Simple steam: 50+ science, technology, engineering, art, math activities for ages 3 to 6. : Gryphon House Inc.

Harvard

Mitchell D., . (2019). Simple steam: 50+ science, technology, engineering, art, math activities for ages 3 to 6. : Gryphon House Inc.

MLA

Mitchell Debby, . Simple steam: 50+ science, technology, engineering, art, math activities for ages 3 to 6. : Gryphon House Inc. 2019.