APA (7th ed.) Zitazioa

Ashton, J. The Book of Nature Containing information for young people who think of getting married, on the philosophy of procreation and sexual intercourse, showing how to prevent conception and to avoid child-bearing: Also, rules for management during labor and child-birth.

Chicago Style (17th ed.) Zitazioa

Ashton, James. The Book of Nature Containing Information for Young People Who Think of Getting Married, on the Philosophy of Procreation and Sexual Intercourse, Showing How to Prevent Conception and to Avoid Child-bearing: Also, Rules for Management During Labor and Child-birth.

MLA (9th ed.) Zitazioa

Ashton, James. The Book of Nature Containing Information for Young People Who Think of Getting Married, on the Philosophy of Procreation and Sexual Intercourse, Showing How to Prevent Conception and to Avoid Child-bearing: Also, Rules for Management During Labor and Child-birth.

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