What has the author Robert Obojski written?

Robert Obojski has written:

'Baseball bloopers & other curious incidents' -- subject(s): Baseball, Juvenile literature, Miscellanea

'Baseball's strangest moments' -- subject(s): Baseball, History, Juvenile literature

'Baseball Bloopers and Diamond Oddities'

'Stamp collector's price guide' -- subject(s): Stamp collecting

'Baseball Memorabilia' -- subject(s): Baseball, Collectibles