Cita APA (7th ed.)

Gy, P. (1979). Sampling of particulate materials: Theory and practice. Elsevier.

Cita Chicago (17th ed.)

Gy, Pierre. Sampling of Particulate Materials: Theory and Practice. Amsterdam: Elsevier, 1979.

Cita MLA (9th ed.)

Gy, Pierre. Sampling of Particulate Materials: Theory and Practice. Elsevier, 1979.