Dyfyniad APA

Hill, J. W., & Kolb, D. K. (1995). Chemistry for changing times: Student study guide (7th ed.). Prentice-Hall.

Dyfyniad Arddull Chicago

Hill, John W., and Doris K. Kolb. Chemistry for Changing Times: Student Study Guide. 7th ed. Upper Saddle River, NJ: Prentice-Hall, 1995.

Dyfyniad MLA

Hill, John W., and Doris K. Kolb. Chemistry for Changing Times: Student Study Guide. 7th ed. Prentice-Hall, 1995.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.