World resources and industries; a functional appraisal of the availability of agricultural and industrial resources

Manylion Llyfryddiaeth
Prif Awdur:	Zimmerman, Erich Walter 1888-
Fformat:	Llyfr
Iaith:	English
Cyhoeddwyd:	New York Harper & brothers c1933.
Pynciau:	Natural resources. Industry. Agriculture > Economic aspects.