Participant crowding and physical contact rates of whale shark tours on Isla Holbox, Mexico / Jackie A. Ziegler, Philip Dearden, Rick Rollins
Enhancing satisfaction and sustainable management: Whale Watching in the Azores / Julia Bentz [et al.]
Participant crowding and physical contact rates of whale shark tours on Isla Holbox, Mexico / Jackie A. Zielgler [et al.]
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