Cita APA

Howe, T. S., Billings, S., & Stolzberg, R. J. Sources of polycyclic aromatic hydrocarbons and hexachlorobenzene in spruce needles of Eastern Alaska.

Citación estilo Chicago

Howe, Timothy S., Shane Billings, y Richard J. Stolzberg. Sources of Polycyclic Aromatic Hydrocarbons and Hexachlorobenzene in Spruce Needles of Eastern Alaska.

Cita MLA

Howe, Timothy S., Shane Billings, y Richard J. Stolzberg. Sources of Polycyclic Aromatic Hydrocarbons and Hexachlorobenzene in Spruce Needles of Eastern Alaska.