How can i find the 1902 dublin census form?

i would like to find out how to obtain information about the census form 1902 from dublin ireland, as i am trying to trace my family tree, also would anybody happen to know how i could obtain a telephone number for "OIFIG AN ARD-CHLARAITHEORA, TIGH AN CHUSTAIM, CUSTOM HOUSE, BAILE ATHA CLIATH 1, DUBLIN 1" if anyone can help me i would be most grateful.