APA (7th ed.) Citation

Rubis, V. L. (1999). Ornamental peculiarities of North-American species of Crataegus L. genus.

Chicago Style (17th ed.) Citation

Rubis, V. L. Ornamental Peculiarities of North-American Species of Crataegus L. Genus. 1999.

MLA (8th ed.) Citation

Rubis, V. L. Ornamental Peculiarities of North-American Species of Crataegus L. Genus. 1999.

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