Cheaper by the Dozen is a 2-book series with 2 released primary works first released in 1948 with contributions by Frank B. Gilbreth Jr. and Ernestine Gilbreth Carey.
#1 of 2 in Cheaper by the Dozen
1948 • 50 Readers • 224 pages • 3.8
#2 of 2 in Cheaper by the Dozen
1950 • 2 Readers • 4