Tohutoro APA (7th ed.)

Goldschmiedt, H. (1973). Practical formulas for hobby or profit (1a. ed.). Chemical Publishing Co.

Tohutoru Kātū Chicago (17th ed.)

Goldschmiedt, Henry. Practical Formulas for Hobby or Profit. 1a. ed. Nueva York: Chemical Publishing Co, 1973.

Tohutoro MLA (9th ed.)

Goldschmiedt, Henry. Practical Formulas for Hobby or Profit. 1a. ed. Chemical Publishing Co, 1973.