00961nam a2200289 i 450099100101324970753620020507181632.0931108s1972 us ||| | eng 0120927500b10788992-39ule_instLE01305739ExLDip.to Matematicaeng511.6AMS 05-01AMS 05-XXBerman, Gerald535768Introduction to combinatorics /Gerald Berman ; K. D. FryerNew York :Academic Press,1972xi, 300 p. ;24 cm.CombinatoricsFryer, Kenneth D..b1078899221-09-0628-06-02991001013249707536LE013 05-XX BER11 (1972)12013000073293le013-E0.00-l- 03030.i1088942528-06-02Introduction to combinatorics921238UNISALENTOle01301-01-93ma -engus 01