Gaya APA
Darkenwald, G, G., B., I, M, S. (NULL).
Adult education: foundations of practice .
London::
London: Harper & Row; 1982.
Gaya MLA
Darkenwald, Gordon, G.., B., I., Merriam,, Sharan.
"Adult education: foundations of practice".
London::
London: Harper & Row; 1982,
NULL.
Text.