Hubbard, L. Ron, 1911-1986
Literary correspondence : letters &​ journals
Bridge Publications, Inc., 2012
 Buku Referensi
A snapshot of early adopters of E-journals: challenges to the library
 Artikel Jurnal
Clark, Rory McDowall
Reconceptualizing leadership in the early years
McGraw-Hill, 2012
 Buku Teks
Williamson, Mark
Spacecraft technology: the early years
Institution of Engineering and Technology, 2008
 eBooks
Chaplin, Charles
My early years
Chivers, 1964
 Buku Teks