Analysis of information sources in references of the Wikipedia article "Amazon rubber cycle" in English language version.
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: ISBN / Date incompatibility (help){{cite book}}
: ISBN / Date incompatibility (help){{cite book}}
: ISBN / Date incompatibility (help){{cite book}}
: ISBN / Date incompatibility (help){{cite book}}
: ISBN / Date incompatibility (help){{cite book}}
: ISBN / Date incompatibility (help){{cite book}}
: ISBN / Date incompatibility (help){{cite book}}
: ISBN / Date incompatibility (help)