Gaya APA
DRAPER, S.R.. (1976).
Seed science and technology .
Norway:
International seed testing association.
Gaya Chicago
DRAPER, S.R..
Seed science and technology.
Norway:
International seed testing association,
1976.
.
Gaya MLA
DRAPER, S.R..
Seed science and technology.
Norway:
International seed testing association,
1976.
.
Gaya Turabian
DRAPER, S.R..
Seed science and technology.
Norway:
International seed testing association,
1976.
.