Hawkes, Denise and Crosby, Danielle (2009) Early maternal employment and child cognitive outcomes: evidence from the UK and US. In: GeNet Conference, 26-27 March 2009, University of Cambridge, Cambridge, UK.

Crosby, Danielle and Hawkes, Denise (2009) Working mothers – do young children benefit? Britain in 2010.. pp. 102-103.

Crosby, Danielle and Hawkes, Denise (2008) Cross-national research using contemporary birth cohort studies: a look at early maternal employment in the United Kingdom and United States. Report. Centre for Longitudinal Studies, Institute of Education, London.