Loretta Castellarin (Castellarin, Loretta)

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  Degrassi Junior High: Spike
  by Loretta Castellarin, Ken Roberts
  Softcover, ABC Books, ISBN 0733300936 (0-7333-0093-6)
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  Spike
  by Loretta Catellarin
  Hardcover, Formac Pub Co Ltd, ISBN 1550281151 (1-55028-115-1)
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  Spike: Degrassi Junior HIgh
  by Ken Roberts, Loretta Castellarin
  Softcover, Orca Book Pub, ISBN 155028925X (1-55028-925-X)