Gaya APA
Barret, M. (2004).
The Handbook of Clinical Tested Herbal Remedies Vol. 1 .
New York:
The Haworth Herbal Press.
Gaya MLA
Barret, Marilyn.
"The Handbook of Clinical Tested Herbal Remedies Vol. 1".
New York:
The Haworth Herbal Press,
2004.
Koleksi Cetak.