APA Style

Osborne, M, P. et al (2006). Ancient Rome and Pompeii: A Nonfiction Companion to Magic Tree House #13: Vacation Under the Volcano (International paperback edition). New York, USA: Random House Books for Young Readers (Penguin Random House).

MLA Style

Osborne, Mary, Pope. et al. "Ancient Rome and Pompeii: A Nonfiction Companion to Magic Tree House #13: Vacation Under the Volcano". International paperback edition New York, USA: Random House Books for Young Readers (Penguin Random House), 2006. Text.