APA

Gray D. E., Rottinghaus G. E., Garrett H. E., Pallardy S. G., Gray D. E., Rottinghaus G. E., Garrett H. E. & Pallardy S. G. (20010111). Simultaneous determination of the predominant hyperforins and hypericins in St. John's Wort (Hypericum perforatum L.) by liquid chromatography. : Journal of AOAC International.

Chicago

Gray D E, Rottinghaus G E, Garrett H E, Pallardy S G, Gray D E, Rottinghaus G E, Garrett H E and Pallardy S G. 20010111. Simultaneous determination of the predominant hyperforins and hypericins in St. John's Wort (Hypericum perforatum L.) by liquid chromatography. : Journal of AOAC International.

Harvard

Gray D. E., Rottinghaus G. E., Garrett H. E., Pallardy S. G., Gray D. E., Rottinghaus G. E., Garrett H. E. and Pallardy S. G. (20010111). Simultaneous determination of the predominant hyperforins and hypericins in St. John's Wort (Hypericum perforatum L.) by liquid chromatography. : Journal of AOAC International.

MLA

Gray D E, Rottinghaus G E, Garrett H E, Pallardy S G, Gray D E, Rottinghaus G E, Garrett H E and Pallardy S G. Simultaneous determination of the predominant hyperforins and hypericins in St. John's Wort (Hypericum perforatum L.) by liquid chromatography. : Journal of AOAC International. 20010111.