Plumbing.
- Wellington, N.Z : E. C. Keating, Government Printer, 1968.
- 372 p. : ill.
"This book was written and prepared for publication by the New Zealand Technical Correspondence Institute"
0477010369
Plumbing--Vocational guidance.
"This book was written and prepared for publication by the New Zealand Technical Correspondence Institute"
0477010369
Plumbing--Vocational guidance.