Happy Hollisters and the Sea Turtle Mystery (1964) (edit title/settings)

Takeyabue edited the contributors of Happy Hollisters and the Sea Turtle Mystery Monday, November 5, 2012.

• Added a contributor: Helen S. Hamilton: (Illustrator)

Shelfari edited the contributors of Happy Hollisters and the Sea Turtle Mystery Sunday, November 27, 2011.

Holly J edited the contributors of Happy Hollisters and the Sea Turtle Mystery Saturday, January 9, 2010.

• Added a contributor: Jerry West: Jerry West was a pseudonym for Andrew E. Svenson (Primary Author)