APA (7th ed.) Citation

Backer, J. G. (1984). Handbook of the fern-allies. Bishen Singh Mahendra Pal Singh.

Chicago Style (17th ed.) Citation

Backer, J. G. Handbook of the Fern-allies. Dehra Dun: Bishen Singh Mahendra Pal Singh, 1984.

MLA (9th ed.) Citation

Backer, J. G. Handbook of the Fern-allies. Bishen Singh Mahendra Pal Singh, 1984.

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