 ESQUEMES D'ALTRES AUTORS EXEMPLES Materials per a ús personal. En els llibres o fonts originals trobareu molts més elements que us poden ser útils. Materials for personal use. In the original books or sources you will find many more elements that can be useful to you. |
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| A Condensed History of
American Agriculture 1776–1999. Font: USDA |
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| Crecimiento de la
población mundial y algunos grandes hitos de la
historia de la tecnología. FOGEL, R. W. (2009) Escapar del hambre y la muerte prematura, 1700-2100. Europa, América y el Tercer Mundo. Madrid: Alianza Ensayo. |
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| The First Globalization and
the aftermath of the WWII: Two socio-ecological
turning points in European and North American
Agricultural Systems. Enrie Tello (Universitat de Barcelona), |
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| Testot, Laurent (2020) Cataclysms. Xicago-Londres: The University of Chicago Press. |
 etc, etc...
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Facing the Price Problem.
Office of Price Administration, Division of Research, Price Analysis and Review Branch. Washington, 1942. |
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| National Geographic |
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| Morrison, Samuel Eliot i Steele
Commager, Henry (1951), Historia de los Estados
Unidos de Norte América. México: FCE. |
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| Morrison, Samuel Eliot i Steele Commager, Henry
(1951), Historia de los Estados Unidos de Norte
América. México: FCE. |
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| Clarke, S. H.
(1994) Regulation and the revolution in United States farm productivity. Cambridge University Press. |
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