McGowan, H.E. 1921: Commercial potato-growing. New Zealand Journal of Agriculture 23: 204-211.
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Provider
| McGowan, H.E. 1921: Commercial potato-growing. New Zealand Journal of Agriculture 23: 204-211. |
| McGowan, H.E. 1921: Commercial potato-growing. New Zealand Journal of Agriculture 23: 204-211. |