机读格式显示(MARC)

• 000 00990nam a2200301 i 4500

• 001 0000838504

• 005 20250906095300.0

• 008 171107r20161986enka b 001 0 eng d

• 010 __ |a 95053943

• 020 __ |a 9781138142329 |q hardback

• 020 __ |a 9780415139090 |q paperback : |c CNY711.00

• 020 __ |a 0415139090 |q pbk. : alk. paper

• 040 __ |a ZSU |b eng |c ZSU |e rda

• 090 __ |a G434/X6=3

• 093 __ |a G434 |2 5

• 099 __ |a CAL 022000427251

• 100 1_ |a Keegan, Desmond, |e author.

• 245 10 |a Foundations of distance education / |c Desmond Keegan.

• 250 __ |a Third edition.

• 260 __ |a London : |b Routledge, |c 2016.

• 300 __ |a xiii, 224 pages : |b illustrations ; |c 22 cm.

• 336 __ |a text |2 rdacontent

• 337 __ |a unmediated |2 rdamedia

• 338 __ |a volume |2 rdacarrier

• 490 0_ |a Routledge studies in distance education

• 504 __ |a Includes bibliographical references and index.

• 534 __ |p Reprint. Originally published : |c Croom Helm, 1986.

• 650 _0 |a Distance education.