TY - BOOK AU - Rossman, Gretchen B. TI - Learning in the field: An introduction to qualitative research SN - 978-1-4129-8048-7 AV - 2b4 Q2 U1 - 020.72 23 PY - 2012/// CY - Los Angeles PB - Sage KW - Social sciences-Research-Methodology ER -