TY - BOOK AU - Porter,Albert W. TI - Pattern T2 - Principles of design SN - 0871920778 AV - N7430.5 .P66 U1 - 701/.8 PY - 1975/// CY - Worcester, Mass. PB - Davis Publications KW - Pattern perception KW - Juvenile literature KW - Design N1 - Includes index N2 - Text and photographs explore planned and random pattern, basic types of pattern, patterns associated with materials, patterns in nature, and patterns put to use ER -