APA

Stevens W. K., .Shamans and scientists seek cures in plants: improbable allies aim to find useful drugs before forests vanish. : .

Chicago

Stevens William K, .Shamans and scientists seek cures in plants: improbable allies aim to find useful drugs before forests vanish. : .

Harvard

Stevens W. K., .Shamans and scientists seek cures in plants: improbable allies aim to find useful drugs before forests vanish. : .

MLA

Stevens William K, .: . .