Cita APA (7a ed.)

(1989). The ECONOMIC and technical viability of various scales of building materials production. UNCHS.

Cita Chicago Style (17a ed.)

The ECONOMIC and Technical Viability of Various Scales of Building Materials Production. Nairobi: UNCHS, 1989.

Cita MLA (9a ed.)

The ECONOMIC and Technical Viability of Various Scales of Building Materials Production. UNCHS, 1989.