APA
Heinrich Michael ; Barnes J; Gibbons S & Williamson EM, . (2012). Fundamentals of Pharmacognosy and Phytotherapy .-2nd edn .-978-07020-3388-9. : Elsevier Churchill, Livingstone, Livingstone.
Chicago
Heinrich Michael ; Barnes J; Gibbons S & Williamson EM, . 2012. Fundamentals of Pharmacognosy and Phytotherapy .-2nd edn .-978-07020-3388-9. : Elsevier Churchill, Livingstone, Livingstone.
Harvard
Heinrich Michael ; Barnes J; Gibbons S & Williamson EM, . (2012). Fundamentals of Pharmacognosy and Phytotherapy .-2nd edn .-978-07020-3388-9. : Elsevier Churchill, Livingstone, Livingstone.
MLA
Heinrich Michael ; Barnes J; Gibbons S & Williamson EM, . Fundamentals of Pharmacognosy and Phytotherapy .-2nd edn .-978-07020-3388-9. : Elsevier Churchill, Livingstone, Livingstone. 2012.