Gaya APA
PARNES, Robert. (1990).
Fertile soil : a grower's guide to organic & inorganic fertilizers .
Davis, California, USA:
AgAccess.
Gaya Chicago
PARNES, Robert.
Fertile soil : a grower's guide to organic & inorganic fertilizers.
Davis, California, USA:
AgAccess,
1990.
.
Gaya MLA
PARNES, Robert.
Fertile soil : a grower's guide to organic & inorganic fertilizers.
Davis, California, USA:
AgAccess,
1990.
.
Gaya Turabian
PARNES, Robert.
Fertile soil : a grower's guide to organic & inorganic fertilizers.
Davis, California, USA:
AgAccess,
1990.
.