Information please almanac, atlas and yearbook 1961
planned and supervised by Dan Golenpaul Associates
McGraw-Hill, 1960
 Buku Referensi
Information please almanac, atlas and yearbook 1968
planned and supervised by Dan Golenpaul Associates
Simon and Schuster, 1967
 Buku Referensi
Information please almanac, atlas and yearbook 1969
planned and supervised by Dan Golenpaul Associates
Simon and Schuster, 1968
 Buku Referensi
Information please almanac, atlas and yearbook 1976
planned and supervised by Dan Golenpaul Associates
Simon and Schuster, 1975
 Buku Referensi
The World almanac and book of facts 1983
Newspaper Enterprise Association, 1982
 Buku Referensi