Kirby, David A. (2011). Lab Coats in Hollywood: Science, Scientists, and Cinema. Cambridge, Mass.: MIT Press. pp. 80–81. Archived from the original on 2020-07-23. Figure 4.4 on page 81 also includes a photograph of astrophysicist Samuel Herrick and actor Michael Rennie standing in front of the blackboard with his equations on it.
Kirby, David A. (2011). Lab Coats in Hollywood: Science, Scientists, and Cinema. Cambridge, Mass.: MIT Press. pp. 80–81. Archived from the original on 2020-07-23. Figure 4.4 on page 81 also includes a photograph of astrophysicist Samuel Herrick and actor Michael Rennie standing in front of the blackboard with his equations on it.