Παραπομπή APA

Alloway, B. J. (1990). Heavy metals in soils. Blackie.

Παραπομπή Chicago Style

Alloway, B. J. Heavy Metals in Soils. London: Blackie, 1990.

Παραπομπή MLA

Alloway, B. J. Heavy Metals in Soils. Blackie, 1990.