Conservation of Our Natural Resources Based on Van Hise's The Conservation of Natural Resources in the United States/

I tiakina i:
Ngā taipitopito rārangi puna kōrero
Kaituhi matua: Havemeyer, Loomis
Hōputu: Pukapuka
I whakaputaina: New York: The Macmillan Company, c1938
Putanga:1st (as supplied; verify)
Ngā marau:
Ngā Tūtohu: Tāpirihia he Tūtohu
Kāore He Tūtohu, Me noho koe te mea tuatahi ki te tūtohu i tēnei pūkete!

GE

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Tau karanga: 333.72 H38c
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