TY - BOOK AU - Huitema, Bradley E., TI - Analysis of covariance and alterna : : Statistical methods for experiments quasi-experiments and single-case studies / SN - 9780471748960(hbk) U1 - 519.538 PY - 2011/// CY - Germany PB - Wiley-VCH Verlag GmbH & Co. KW - Probabilities & applied mathematics ER -