Greco, B. J., Meehan, C. L., Miller, L. J., Shepherdson, D. J., Morfeld, K. A., Andrews, J., . . . Mench, J. A. (2016). Elephant Management in North American Zoos: Environmental Enrichment, Feeding, Exercise, and Training. PLoS One.
シカゴスタイル引用形Greco, Brian J., Cheryl L. Meehan, Lance J. Miller, David J. Shepherdson, Kari A. Morfeld, Jeff Andrews, Anne M. Baker, Kathy Carlstead, , Joy A. Mench. "Elephant Management in North American Zoos: Environmental Enrichment, Feeding, Exercise, and Training." PLoS One 2016.
MLA引用形式Greco, Brian J., et al. "Elephant Management in North American Zoos: Environmental Enrichment, Feeding, Exercise, and Training." PLoS One 2016.
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