$a Why are they serving meat at a climate change conference? / Peter Singer with Frances Kissling // Ethics in the real world / Peter Singer. - Princeton [i pozostałe], 2016. - Strony 268-272
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$a LCA online
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$a University Center for Human Values, 20.11.2019 $u https://uchv.princeton.edu/events/population-growth-problem-if-so-what-would-be-ethical-response