APA Style
Folch, R. (2000).
ENCCYCLOPEDIA OF THE BIOSPHERE Humans in the World s E cosystems (1).
SPAIN:
GALE GROUP.
MLA Style
Folch, Ramon.
"ENCCYCLOPEDIA OF THE BIOSPHERE Humans in the World s E cosystems".
1
SPAIN:
GALE GROUP,
2000.
المصادر المراجع.