APA (7th ed.) Citation

Patience, J. Sigmund's birthday surprise. Peter Haddock Ltd.

Chicago Style (17th ed.) Citation

Patience, John. Sigmund's Birthday Surprise. England: Peter Haddock Ltd.

MLA (9th ed.) Citation

Patience, John. Sigmund's Birthday Surprise. Peter Haddock Ltd.

Warning: These citations may not always be 100% accurate.