| Customs and Practices of the Mold making Industry: Classifications of Injection Molds for Thermoplastic Materials, A Guide for the Purchaser or Manufacturer of Thermoplastic Injection Molds., Mold makers Division, The Society of the Plastics Industry, 1989. | Information on how the mold making industry works and concise information on specifying molds and their classifications. |
| Plastics Engineering Handbook of the Society of the Plastics Industry, Inc. 5th ed. Michael L. Berins ed., Van Nostrand Reinhold, NY. 1991. | Some 800+ pages covering most every process involved with plastics from polymer structures to final value added operations. |
| Standards & Practices of Plastics Molders: Guidelines for Molders and Their Customers, Molders Division, The Society of the Plastics Industry, 1993. | Clear and concise information on how the molding industry works as well as design guidelines and material tolerance specifications. |