NTC Blue Book Low Voltage Systems Handbook, 2020 Pre-Printed Tabs by UpStryve Book Store Save Liquid error (snippets/product-badge line 32): Computation results in '-Infinity'% $29.99 | / 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart NTC Blue Book Low Voltage Systems Handbook, 2020 Pre-Printed Tabs (tabs only, highlights not included).