APA (7th ed.) Citation

Stratemeyer, E. Dave Porter on Cave Island; Or, A Schoolboy's Mysterious Mission.

Chicago Style (17th ed.) Citation

Stratemeyer, Edward. Dave Porter on Cave Island; Or, A Schoolboy's Mysterious Mission.

MLA (9th ed.) Citation

Stratemeyer, Edward. Dave Porter on Cave Island; Or, A Schoolboy's Mysterious Mission.

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