John Shepherd
发表
J. S. Highfield,
Shamus P. Smith,
K. Edgcumbe,
1922
.
John Shepherd,
Jean-Louis Lassez,
Catherine Lassez,
1981,
J. Syst. Softw..
John Shepherd,
Walter Lang,
W. E. Burnand,
1915
.
John Shepherd,
Carol Russell,
J. Shepherd,
2010,
Br. J. Educ. Technol..