Dan Petersen

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Petersen's Safety Supervision $49.95 from $13.94	Safety Management: A Human Approach $89.95 from $52.00
Techniques of Safety Management: A Systems Approach $85.25 from $81.28	Safety management: A human approach from $13.04
Spider Webs, Cigar Boxes, Parts and More: Volumes 24 and 25 of the Xtal Set Society Newsletter from $8.95	Crystal Radio Projects from the Xtal Set Society Newsletter: Volumes 12 and 13 $9.95 from $7.77
Antennas, Tubes, and Regeneration: Volumes 20 and 21 of the Xtal Set Society Newsletter from $8.95	Radios Old and New: Volumes 22 and 23 of the Xtal Set Society Newsletter from $8.95
Crystal Radio From Galena to Litz: Volume 16 and 17 The Xtal Set Society Newsletter from $8.95	Jazz Tunes for Improvisation, Vol 1: Book & CD from $6.49