Gaya APA
Fernald, M, L. (1989).
Gray's Manual of Botany (Rewritten and Expanded by Merritt Lyndon Fernald) .
:
Dioscorides Press.
Gaya MLA
Fernald, Merritt, Lyndon.
"Gray's Manual of Botany (Rewritten and Expanded by Merritt Lyndon Fernald)".
:
Dioscorides Press,
1989.
Text.