Bishop, D. (2005). DeFries-Fulker analysis of twin data with skewed distributions: Cautions and recommendations from a study of children's use of verb inflections. Springer Science and Business Media, LLC.
Lua i Stíl Chicago (17ú heag.)Bishop, D. DeFries-Fulker Analysis of Twin Data with Skewed Distributions: Cautions and Recommendations from a Study of Children's Use of Verb Inflections. Springer Science and Business Media, LLC, 2005.
Lua MLA (9ú heag.)Bishop, D. DeFries-Fulker Analysis of Twin Data with Skewed Distributions: Cautions and Recommendations from a Study of Children's Use of Verb Inflections. Springer Science and Business Media, LLC, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.