APA

Stafleu F. a., Cowan R. S., . (1979). Taxonomic literature : a selective guide to botanical publications with dates, commentaries and types : volume 2, H-Le. Utrecht: Scheltema & Holkema; International Association for Plant Taxonomy.

Chicago

Stafleu Frans a, Cowan Richard S, . 1979. Taxonomic literature : a selective guide to botanical publications with dates, commentaries and types : volume 2, H-Le. Utrecht: Scheltema & Holkema; International Association for Plant Taxonomy.

Harvard

Stafleu F. a., Cowan R. S., . (1979). Taxonomic literature : a selective guide to botanical publications with dates, commentaries and types : volume 2, H-Le. Utrecht: Scheltema & Holkema; International Association for Plant Taxonomy.

MLA

Stafleu Frans a, Cowan Richard S, . Taxonomic literature : a selective guide to botanical publications with dates, commentaries and types : volume 2, H-Le. Utrecht: Scheltema & Holkema; International Association for Plant Taxonomy. 1979.