Mammals of the Sea

By Virginia B. Silverstein and Alvin Silverstein

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. WTTW, channel 11, is one of three PBS member stations serving the Chicago, Illinois market; the others are WYCC and WYIN. WTTW began broadcasting on March 5, 1955 and is owned and operated by Window to the World Communications Inc., a not-for-profit broadcasting entity. Programming on WTTW is funded in part by financial support of viewers and by other not-for-profit organizations such as the Corporation For Public Broadcasting. WTTW also owns and operates The Chicago Production Center, a video production and editing facility in the citys North Park section, and a classical music radio station WFMT located at 98.7 FM. WTTW also serves the nearby Rockford, Illinois market via cable television: Rockford is one of the few markets in the country without a PBS station of its own.

• Format: Hardcover
• Language: English
• ISBN: 0874641683
• ISBN13: 9780874641684
• Release Date: January 1971
• Publisher: Golden Gate Junior Books
• Length: 89 Pages
• Weight: 0.60 lbs.