Title
- The Billboard 1920-01-24: Vol 32 Iss 491
- The Billboard 1920-05-01: Vol 32 Iss 1891
- The Billboard 1920-06-05: Vol 32 Iss 2391
- The Billboard 1920-07-03: Vol 32 Iss 2791
- The Billboard 1920-07-17: Vol 32 Iss 2991
- The Billboard 1920-10-09: Vol 32 Iss 4191
- The Billboard 1920-11-06: Vol 32 Iss 4591
- The Billboard 1920-11-13: Vol 32 Iss 4691
- The Billboard 1921-02-19: Vol 33 Iss 891
- The Billboard 1925-07-04: Vol 37 Iss 2791
- Harvard business reports90
- Studio Skeleton90
- The Billboard 1917-05-26: Vol 29 Iss 2190
- The Billboard 1919-08-02: Vol 31 Iss 3190
- The Billboard 1919-09-06: Vol 31 Iss 3690
- The Billboard 1920-01-31: Vol 32 Iss 590
- The Billboard 1920-04-03: Vol 32 Iss 1490
- The Billboard 1920-04-10: Vol 32 Iss 1590
- The Billboard 1920-11-27: Vol 32 Iss 4890
- The Billboard 1920-12-11: Vol 32 Iss 5090