APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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