APA Style
Keller, M, J. et al (1998).
Space Exploration Experiments, Games, Art, and Writing Activities Grade 2-6 .
California:
Evan-moor Corp..
MLA Style
Keller, Mary, Jo. et al.
"Space Exploration Experiments, Games, Art, and Writing Activities Grade 2-6".
California:
Evan-moor Corp.,
1998.
Text.