Tjeerd de Graaf books & textbook
Aspects of Neutrino Astrophysics
Groningen, Wolters-Noordhoff , 1969 /1969-01-01 Paperback
Sustaining Indigenous Knowledge: Learning Tools and Community Initiatives for Preserving Endangered Languages and Local Cultural Heritage
Kasten, Erich De Graaf, Tjeerd
Verlag Der Kulturstiftung Sibirien /2013-01-08 Paperback / 284 Pages
isbn-10: 3942883120 / isbn-13: 9783942883122
Endangered Languages and Language Learning (Proceedings)
Tjeerd de Graaf Nicholas Ostler Reinier Salverda
Foundation for Endangered Languages / Paperback
isbn-10: 095602100X / isbn-13: 9780956021007
