Gaya APA
Douglas, James Sholto.. (1951).
Advanced guide to hydroponics : (Soilless Cultaivation) / James Sholto Douglas .
London:
Pelham.
Gaya Chicago
Douglas, James Sholto..
Advanced guide to hydroponics : (Soilless Cultaivation) / James Sholto Douglas.
London:
Pelham,
1951.
Text.
Gaya MLA
Douglas, James Sholto..
Advanced guide to hydroponics : (Soilless Cultaivation) / James Sholto Douglas.
London:
Pelham,
1951.
Text.
Gaya Turabian
Douglas, James Sholto..
Advanced guide to hydroponics : (Soilless Cultaivation) / James Sholto Douglas.
London:
Pelham,
1951.
Print.