Roberts, A. (1978). Prescriptive, Descriptive, or Proscriptive? Implications of the Developmental Guidelines, A Commitment to Information Services.
Citazione stile Chigago Style (17a edizione)Roberts, Anne. Prescriptive, Descriptive, or Proscriptive? Implications of the Developmental Guidelines, A Commitment to Information Services. 1978.
Citatione MLA (9a ed.)Roberts, Anne. Prescriptive, Descriptive, or Proscriptive? Implications of the Developmental Guidelines, A Commitment to Information Services. 1978.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.