Dyfyniad APA

Ross, S. (1976). First aid for house plants. Mc Graw Hill Book company.

Dyfyniad Arddull Chicago

Ross, S. First Aid for House Plants. NewYork: Mc Graw Hill Book company, 1976.

Dyfyniad MLA

Ross, S. First Aid for House Plants. Mc Graw Hill Book company, 1976.

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