Dyfyniad APA

various. (1991). QUESTIONS KIDS ASK ABOUT SNAKES AND FROGS VOL 17 (Unknown.). Grollier Limited.

Dyfyniad Arddull Chicago

various. QUESTIONS KIDS ASK ABOUT SNAKES AND FROGS VOL 17. Unknown. Grollier Limited, 1991.

Dyfyniad MLA

various. QUESTIONS KIDS ASK ABOUT SNAKES AND FROGS VOL 17. Unknown. Grollier Limited, 1991.

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