Harper, J. (2000). Solutions to 20 common building problems. BRANZ.
Chicago Style (17. basım) AtıfHarper, John. Solutions to 20 Common Building Problems. Porirua City, N.Z.: BRANZ, 2000.
MLA (8th ed.) AtıfHarper, John. Solutions to 20 Common Building Problems. BRANZ, 2000.
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