Hurt 1978, p. 368. Hurt, R. Douglas (1978). «Agricultural Museums: A New Frontier for the Social Sciences». The History Teacher. 11 (3): 367–75. JSTOR491627
Hurt 1978, pp. 368-9. Hurt, R. Douglas (1978). «Agricultural Museums: A New Frontier for the Social Sciences». The History Teacher. 11 (3): 367–75. JSTOR491627