APA (7e ed.) Bronvermelding

Pfeiffer, E. M. (1988). Trace elements and heavy metals in soils and plants of the Southeast Asian Metropolis, Metro Manila and of some rice cultivation provinces in Luzon, Philippines. s.n.].

Chicago (17e ed.) Bronvermelding

Pfeiffer, E. M. Trace Elements and Heavy Metals in Soils and Plants of the Southeast Asian Metropolis, Metro Manila and of Some Rice Cultivation Provinces in Luzon, Philippines. [S.l: s.n.], 1988.

MLA (9e ed.) Bronvermelding

Pfeiffer, E. M. Trace Elements and Heavy Metals in Soils and Plants of the Southeast Asian Metropolis, Metro Manila and of Some Rice Cultivation Provinces in Luzon, Philippines. s.n.], 1988.