APA-ийн эшлэл(7 дахь хэвлэлт)

(1992). The Distribution among the States of School-Age Children in Poor Families, 1990 versus 1980 Implications for Chapter 1. CRS Report for Congress / Wayne Clifton Riddle. [microform].

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

The Distribution Among the States of School-Age Children in Poor Families, 1990 Versus 1980 Implications for Chapter 1. CRS Report for Congress / Wayne Clifton Riddle. [microform]. 1992.

MLA -ийн эшлэл (9 дэх хэвлэлт)

The Distribution Among the States of School-Age Children in Poor Families, 1990 Versus 1980 Implications for Chapter 1. CRS Report for Congress / Wayne Clifton Riddle. [microform]. 1992.