The Treasure of Pirate Island /Author: Helmer, Marilyn,
Publisher: Custer, WA : Orca Book Publishers,
Date: 2013. This title can be found in 1 Iowa libraries.
Adventures at Camp Lots-o-fun /Author: Helmer, Marilyn.
Publisher: Victoria, BC : Orca Book Publishers,
Date: 2010. This title can be found in 2 Iowa libraries.
Critter riddles /Author: Helmer, Marilyn.
Publisher: Tonawanda, NY : Tonawanda, NY : Kids Can Press,
Date: 2003. This title can be found in 12 Iowa libraries.
Three teeny tiny tales /Author: Helmer, Marilyn.
Publisher: Tonawanda, NY : Tonawanda, NY : Kids Can Press,
Date: c2001. This title can be found in 2 Iowa libraries.
Three tales of three /Author: Helmer, Marilyn.
Publisher: Niagara Falls, NY : Kids Can Press Ltd.,
Date: c2000. This title can be found in 6 Iowa libraries.
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