Gaya APA
Smet, P, D., Chandler, K, K, R, H, R. (1992).
Adverse effects of herbal drugs (1).
Berlin:
Springer-Verlag.
Gaya MLA
Smet, P.A.G.M., De., Chandler, K., Keller,, R., Hansel., R.F..
"Adverse effects of herbal drugs".
1
Berlin:
Springer-Verlag,
1992.
Text.