Gaya APA
Laetsch, Watson M. (1979).
Plants : basic concepts in botany .
Canada:
Little, Brown and Company.
Gaya Chicago
Laetsch, Watson M.
Plants : basic concepts in botany.
Canada:
Little, Brown and Company,
1979.
Text.
Gaya MLA
Laetsch, Watson M.
Plants : basic concepts in botany.
Canada:
Little, Brown and Company,
1979.
Text.
Gaya Turabian
Laetsch, Watson M.
Plants : basic concepts in botany.
Canada:
Little, Brown and Company,
1979.
Print.