Collective work (US) applies to jurisdiction United States of America
A collective work in the copyright law of the United States is a work that contains the works of several authors assembled and published into a collective whole. 
The owner of the work has the property rights in the collective work, but the authors of the individual works may retain rights in their contributions.
Electronic reproduction of the whole work is allowed, but electronic reproduction of the individual works on their own, outside the context of the work as a whole, may constitute an infringement of copyright.