APA (7th ed.) Citation

Wolfe, A., & Helman, A. (1995). O is for orca: A Pacific Northwest alphabet book. Sasquatch Books.

Chicago Style (17th ed.) Citation

Wolfe, Art, and Andrea Helman. O Is for Orca: A Pacific Northwest Alphabet Book. Seattle: Sasquatch Books, 1995.

MLA (8th ed.) Citation

Wolfe, Art, and Andrea Helman. O Is for Orca: A Pacific Northwest Alphabet Book. Sasquatch Books, 1995.

Warning: These citations may not always be 100% accurate.