एपीए उद्धरण

Bowles, J. E. (1979). Physical and geotechnical properties of soils. Mc Graw Hill Book company.

शिकागो स्टाइल उद्धरण

Bowles, J E. Physical and Geotechnical Properties of Soils. NewYork: Mc Graw Hill Book company, 1979.

एमएलए उद्धरण

Bowles, J E. Physical and Geotechnical Properties of Soils. Mc Graw Hill Book company, 1979.