@inbook{9c403de132154059a9517cc93f62496e,
title = "Acquisition of the two word {"}pivot-open{"} structure in subnormal children: a case study",
author = "K. Wheldall and D. Jeffree and P. Mittler",
year = "1975",
doi = "10.1007/978-3-642-66104-4\_2",
language = "English",
isbn = "9783642661068",
pages = "13--22",
editor = "Brengelman, \{J. C.\} and Quinn, \{J. T.\} and Graham, \{P. J.\} and Harbison, \{J. J. M.\} and H. McAllister",
booktitle = "Progress in behaviour therapy",
publisher = "Springer, Springer Nature",
address = "United States",
}