APA (7th ed.) Citation

Perkins, L. F. (1915). The Mexican twins. Houghton Mifflin.

Chicago Style (17th ed.) Citation

Perkins, Lucy Fitch. The Mexican Twins. Boston, etc: Houghton Mifflin, 1915.

MLA (9th ed.) Citation

Perkins, Lucy Fitch. The Mexican Twins. Houghton Mifflin, 1915.

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