TY - BOOK AU - Proctor C H AU - Staines Bill ED - North Carolina State Univ. Institute of Statistics TI - Conversational activity and the quality of information from interviews for obtaining farm facts U1 - 519 PY - 1972/// CY - Raleigh PB - North Carolina State Univ KW - Conversational activity KW - Probability KW - Quality of information ER -