APA (7th ed.) Citation

SKORNICKA, J., & ERDMAN, R. (1940). Intermediate method french horn Eb alto or mellophone A follow up course for individual or like-instrument class instruction. Rubank Inc.

Chicago Style (17th ed.) Citation

SKORNICKA, J.E, and R. ERDMAN. Intermediate Method French Horn Eb Alto or Mellophone A Follow Up Course for Individual or Like-instrument Class Instruction. Rubank Inc, 1940.

MLA (8th ed.) Citation

SKORNICKA, J.E, and R. ERDMAN. Intermediate Method French Horn Eb Alto or Mellophone A Follow Up Course for Individual or Like-instrument Class Instruction. Rubank Inc, 1940.

Warning: These citations may not always be 100% accurate.