R. Clifford

发表

Catherine Scott-Little, G. Saluja, R. Clifford, 2000 .

R. Clifford, T. Harms, D. Cryer, 2002 .

Robert C. Pianta, Richard M. Clifford, Oscar A. Barbarin, 2008 .

J. Gallagher, R. Clifford, Kelly L. Maxwell, 2004 .

D. Weber, J. Kotch, F. Loda, 1994, Pediatrics.

R. Clifford, T. Harms, 1989 .

Margaret Burchinal, Richard M. Clifford, C. Howes, 2002 .

Sharon Ritchie, R. Pianta, C. Howes, 2010, Child development.

Richard M. Clifford, Thelma Harms, R. Clifford, 1998 .

R. Clifford, Stephanie S. Reszka, H. Rossbach, 2010 .

Richard M. Clifford, Thelma Harms, R. Clifford, 2007 .

R. Clifford, S. Russell, 1987, Child welfare.

Pascal Louis Trohanis, James J. Gallagher, Richard M. Clifford, 1989 .

Robert C. Pianta, Florence Chang, Richard M. Clifford, 2005 .

R. Clifford, D. Bryant, Diane M. Early, 2005 .

R. Pianta, C. Howes, R. Clifford, 2010, Child development.