Nikon Inc. Instrument Group January 1990 Instruments for Industry Catalog.

Wayne Kerr Inc. 1988 No. 001 Instrument Catalog.

Beckman Instruments, Inc 1990 Rotors, Tubes & Accessories Catalog.

Neslab Instruments, Inc 1990 Catalog.

CVI Laser Corportation 1990 Optics Catalog

BK Precision / Maxtec 1990 Test Instruments Catalog.

Wavetek 1990 Test + Measurement Instrumentation Catalog

Wayne Kerr B601 Radio Frequency Bridge and Z601 Low Impedance Adaptor manual