APA (7th ed.) Citation

Hubbard, L. R. The Problems of Work. New Era Publications.

Chicago Style (17th ed.) Citation

Hubbard, L. Ron. The Problems of Work. Denmark: New Era Publications.

MLA (9th ed.) Citation

Hubbard, L. Ron. The Problems of Work. New Era Publications.

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