Elastic beam calculations handbook מאת Chyu, Jih-Jiang

An electronic book accessible through the World Wide Web; click to view

Chemical feed field guide for treatment plant operators calculations and systems / מאת Lauer, Bill

An electronic book accessible through the World Wide Web; click to view

Math for wastewater treatment operators grades 1 and 2 a guide to preparing for wastewater treatment operator certification exams / מאת Giorgi, John

An electronic book accessible through the World Wide Web; click to view

Math for water treatment operators practice problems to prepare for water treatment operator certification exams / מאת Giorgi, John

An electronic book accessible through the World Wide Web; click to view

Goss's roofing ready reckoner : from timberwork to tiles including metric cutting and sizing tables for timber roof members / מאת Mindham, C. N. (Chris N.)

An electronic book accessible through the World Wide Web; click to view

Formulas for dynamics, acoustics and vibration / מאת Blevins, Robert D.

An electronic book accessible through the World Wide Web; click to view

Roofing ready reckoner metric and imperial dimensions for timber roofs of any span and pitch / מאת Goss, Ralph

An electronic book accessible through the World Wide Web; click to view